A stem-and-leaf plot is a type of graph that is similar to a histogram but shows more information by summarizing the shape of a set of data (the distribution) and providing extra detail regarding individual values. Then, you can create the graph with groups to determine whether the group variable accounts for the peaks in the data. 13 11 133344566778 8 -0 44 If you have additional information that allows you to classify the observations into groups, you can create a group variable with this information. 14 0 00334688 Each number in the data is broken down into a stem and a leaf, thus the name. (14) 11 13334455667789 You can also copy and paste lines of data points from documents such as Excel spreadsheets or text documents in the following formats with or without commas: This is the currently selected item. (Note it is not even labeled “Key”). Instead, the stem forms one part of a number, and the leaves make up the rest of that number. The bad news is sometimes you must dig a little to find it. Score : Printable Math Worksheets @ www.mathworksheets4kids.com Name : Answer Key Level 1: S1 Make stem-and-leaf plots for the given data. 2 0 2 2 5 6 -0 33222 Especially in stem and leaf plots with decimals, the key is very important, because it shows where the decimal goes. Stem and Leaf Plot Task Cards and Recording Sheets, CCSS: 6.SP.4 Included in this product: *20 unique task cards dealing with making and interpreting stem-and-leaf plots *4 different recording sheets *Answer Key These cards are great for math centers, independent practice, "SCOOT" and other coop The median is in the row that has values between 95 seconds and 99 seconds. (A peak represents the mode of a set of data.) 1 6 An investigation revealed that unusually heavy web traffic caused instability and delays. Decimal In the Stem. To represent negative numbers, we simply use negative stems. Histograms and stem-and-leaf plots. The values range from 80 seconds to 119 seconds. By using this site you agree to the use of cookies for analytics and personalized content. 1 1 4 2 -2 20 This means that the stems represent the 10 10 1 0 ’s place. 3 0 6 49 12 2599 Practice: Reading stem and leaf plots. Since stem and leaf displays can only portray two whole digits (one for the stem and one for the leaf), the numbers are first rounded. The stem-and-leaf plot with left-skewed data shows failure time data. Stem and leaf plots review. Make a stem-and-leaf plot and specify the key range. For 45.7, 7 is the leaf and 45 is the stem. Required fields are marked *, Key: 3 | 2 = 32% – Denotes number and percentage, Key: 3 | 2 represents 3.2 seconds – Denotes decimal location and units, Key: 3 | 2 represents 32 meters – Shows number and units, 3 | 2 is 32 – This is the bare minimum, but is very common. 21 0 000001111111 d. Find the mean, median, mode, and range and mark these on the national stem-and-leaf plot. If you have more than 50 data points, consider using a boxplot or a histogram. Some of the worksheets for this concept are Back to back plot 1, Stem and leaf plots examples, Stem and leaf plots a, 3 7 key 6 5, Mathematics linear 1ma0 stem leaf diagrams, Stem and leaf plots, Math mammoth statistics work, Work to accompany the stem and leaf plots lesson. Creating a histogram. a. For the example 12.3, the Key would show that 12 | 3 equals 12.3 units. The first row has a stem value of 8 and contains the leaf values 0, 2, and 3. Outliers may indicate other conditions in your data. A stem-and-leaf plot is a chart tool that has a similar purpose as the histogram, and it is used to quickly assess distributional properties of a sample (the shape of its probability distribution). 7 0 4555 The sample size is displayed at the top of the stem-and-leaf plot. Because a stem-and-leaf plot represents each data value, it is best when the sample size is less than approximately 50. When data are skewed, the majority of the data are located on the high or low side of the graph. 4. The objective is … Make a stem-and-leaf plot for each Africa region. Here is how to easily pull out the stem and the leaf: For 12, 2 is the leaf and 1 is the stem. Describing and comparing distributions. For example, the last value at the bottom of this plot could be an outlier. 1 16 1 45 13 0012334667778888888 Site Navigation. The key on this plot shows that the stem is the tens place and the leaf is the ones place. 23 10 0000111233 1 3 About. 21 9 0122235555677889 If you want to analyze severely skewed data, read the data considerations topic for the analysis to make sure that you can use data that are not normal. Skewed data and multi-modal data indicate that data may be nonnormal. Copyright © 2019 Minitab, LLC. The students should work together to create a stem-and-leaf plot based on the data. Each number set is randomly generated, so you can create multiple unique worksheets for your students. But, as with any plot or graph, some context is needed. 21 9 0122235555677889 24 13 0012334667778888888 Practice: Create histograms. 8 15 0245779 Stem-and-leaf of C1 N = 31 The key is just the meaning for what sort of digits you are trying to talk about. If applicable, it will also show the units of measurement (percent, feet, inches, etc.). (18) 14 000011122236777888 A stem-and-leaf plot is a way of organizing data into a form that makes it easy to see the frequency of different types of values. (B) Round the data to two or three significant digits. A proper stem and leaf plot should ALWAYS have a key. 13 10 55667789 Practice: Read histograms. Stem and Leaf Plot When there are many numbers in a set of data, we can construct a stem-and-leaf plot to show the data and make it easier to read. To construct a stem-and-leaf plot: (A) Draw a stem-like axis that covers the range of potential values. 2 7 18 Leaf Unit = 0.1, Stem-and-leaf of C1 N = 100 Key: 6-9 means 69 The key is based on entirely what numbers you have used in the stem and leaf plot. 1 -0 4 A stem and leaf plot displays data by splitting up each value in a dataset into a “stem” and a “leaf.” To learn how to make a stem and leaf plot by hand, read this tutorial.. To create a stem and leaf plot for a given dataset, enter your comma separated data in the box below: The "leaf unit" at the top of the plot indicates which decimal place the leaf values represent. Similarly, 42.9 is rounded to 43. For each row, the number in the "stem" (the middle column) represents the first digit (or digits) of the sample values. 5 11 14 1 0 6 Correct any data entry or measurement errors. In this case the leaf is the at the end, and the stem is the remaining digits, which is 55. Because a stem-and-leaf plot represents each data value, it is best when the sample size is less than approximately 50. A stem and leaf plot looks something like a bar graph. (C) Separate each data-point into a stem component and leaf component. The "leaf unit" at the top of the plot indicates which decimal place the leaf values represent. Then, repeat the analysis. When data are skewed, the majority of the data are located on the high or low side of the graph. 3 -1 333 Like in this example: (6) 9 555799 2) 67, 42, 58, 41, 54, 65, 65, 54, 69, 53 Stem 4 1 2 Donate or volunteer today! So I'll have to put a "key" or "legend" on this plot to show what I mean by the numbers in this plot. Properly, every stem-and-leaf plot should have a key. Keys can also be placed above, on the side, or mentioned in the context of a word problem. Outliers, which are data values that are far away from other data values, can strongly affect your results. The stem-and-leaf plot with groups shows that the clusters correspond to two groups. For each plot, find the data and make one stem-and-leaf plot for all of the countries of Africa. Stem-and-Leaf Plots (A) Answer the questions about the stem-and-leaf plot. All rights Reserved. We can also see that the youngest person at the party was 01, or 1 year old. On a stem-and-leaf plot, isolated values at the ends identify possible outliers. The "leaf unit" at the top of the plot … Often, skewness is easiest to detect with a histogram or a boxplot. 1 4 The first row of the stem-and-leaf plot of Wait times has a stem value of 8 and contains the leaf values 0, 2, and 3. It plots data similar to the horizontal bar graph but uses the original data instead of bars. A stem and leaf plot key shows what a typical entry represents. A key is included to indicate how to interpret the stem and leaf values. 24 -0 3333333322222222 1 5 Stem and Leaf Plot. Stem and Leaf Plot Graphing: It is a specific table used to showcase the data in the interesting way.Here each digit in the data is split into a stem (1st digit(s)) and leaf (last digit(s)). 9 0 22233 Assess how the sample size may affect the appearance of the stem-and-leaf plot. 26 14 000011122236777888 Skewness indicates that the data may not be normally distributed. 6 -0 6 A stem and leaf plot key shows what a typical entry represents. The stem-and-leaf plot with right-skewed data shows wait times. The stem-and-leaf plot is an excellent way to start an analysis. Multi-modal data have more than one peak. A Key (or Legend) is used with a stem and leaf plot to give this context. 8 8 56688 A stem and leaf plot organizes data by showing the items in order using stems and leafs.The leaf is the last digit on the right or the ones digit.The stem is the remaining digit or digits. Generate an online stem and leaf plot, or stemplot, and calculate basic descriptive statistics for a sample data set with 4 or more values and up to 1000 values, all non-negative. Leaf Unit = 0.1. Next lesson. Your email address will not be published. These stem-and-leaf plots illustrate skewed data. Examine the center and spread of the distribution. A stem and leaf plot, or stem plot, is a technique used to classify either discrete or continuous variables. Stem and Leaf plots are one of the main data representation methods. The most common location for a key is centered under the plot, but there is no “standard” location. c. Combine the data and make one stem-and-leaf plot for all of the countries of Africa. Now we can see that the oldest person at the party is 66 years old. Examine the following elements to learn more about your sample data. Although most plots are easy to understand, you run the risk of losing points if you do not include these things. For each row, the number in the "stem" (the middle column) represents the first digit (or digits) of the sample values. 4 0 445 This example shows how to make a stem and leaf plot. This is the currently selected item. If applicable, it will also show the units of measurement (percent, feet, inches, etc.). 5 12 259 Leaf Unit = 0.1, Stem-and-leaf of C1    C2 = 2    N = 50 Stem And Leaf Answers - Displaying top 8 worksheets found for this concept.. Stem-and-leaf of C1 N = 50 This calculator allows you to create a special table where each data value is split into a stem (the first digit or digits) and a leaf (usually the last digit). 1 8 0 The ones digits will be the stem values, and the tenths will be the leaves. We just leave a gap. Most of the wait times are relatively short, and only a few wait times are long. Khan Academy is a 501(c)(3) nonprofit organization. A Key (or Legend) is used with a stem and leaf plot to give this context. For example, in the stem and leaf plot below, 7 ∣ 1 7|1 7 ∣ 1 corresponds to 71 71 7 1. Let’s look at a similar example. Leaf Unit = 0.1, Stem-and-leaf of C1    C2 = 1    N = 50 1 7 For example, these stem-and-leaf plots are graphs of the same data. A 2 2 2 in the stem column represents 20 20 2 0, and a 4 4 4 in the stem column represents 40 40 4 0. 1 16 1 Steps for Making Stem-and-Leaf Plots. Complete the following steps to interpret a stem-and-leaf plot. Leaf Unit = 0.1. (7) -0 1111111 In the previous example, the sample size is 50 (N = 50). In a stem and leaf plot, the quantitative data can be presented in a type of graphical format in which the "leaf " represents the last digit, and the stem represents the first digit or digits. 18 0 22222333333 37 10 0122233334556778 4 -1 52 A key is also how you denote if the entries include decimal points. The display breaks each score into two components: a leaf, which is usually the last digit of the score, and a stem, which is everything else. Your email address will not be published. Remember, you don’t want to simplify a lot of data into an easy to read format just to confuse someone as to what each data point actually means. Only the digit in the unit place is indicated as the leaf. A stem-and-leaf plot is a chart tool that has a similar purpose as the histogram, and it is used to quickly assess distributional properties of a sample (the shape of its probability distribution). A Stem and Leaf Plot is a special table where each data value is split into a "stem" (the first digit or digits) and a "leaf" (usually the last digit). The sample size can affect the appearance of the graph. Interpreting a histogram. Remember that the leading values become our stems and the trailing values the leaves. Reading stem and leaf plots. 3 8 023 (13) -0 8886555433300 The answer lies with the stem and leaf plot key. Reading stem and leaf plots. A stem and leaf plot is used to organize data as they are collected. The simple stem-and-leaf plot has two clusters of points, but it's not clear what the clusters mean. You can select to include 9 to 16 numbers in each data set. Sometimes it won’t be labeled as a “Key,” and sometimes you’ll have to read for clues in a word problem. Stem and leaf plots are similar to horizontal bar graph, but the actual numbers are used instead of bars. If you know that your data are not naturally skewed, investigate possible causes. Our mission is to provide a free, world-class education to anyone, anywhere. Stem-and-leaf displays organize data so that an entire distribution of scores is quickly and easily comprehensible. 5 -0 99 If the sample is greater than 50, the data points on the plot may extend too far, and the distribution may be difficult to assess. b. 2 7 18 Despite the name, there is no flora or foliage involved. Sometimes you will have to create a stem and leaf plot, either for a homework question or exam. This stem-and-leaf plot shows customer wait times for an online customer service chat with a representative. 2 11 59 Thus, the value 43.2 is rounded to 43 and represented with a stem of 4 and a leaf of 3. 5 8 589 We don’t use commas to separate leaf values. Often, skewness is easiest to detect with a, Step 2: Look for indicators of nonnormal or unusual data. 2 1 3 11 579 3 -1 Skewness indicates that the data may not be normally distributed. The free stem and leaf plot worksheet maker creates problem sets with up to 8 sets of data for students to practice plotting. Sort by: Top Voted. Multi-modal data usually occur when the data are collected from more than one process or condition, such as at more than one temperature. stem leaf 13 6 14 1 1 4 6 15 3 8 16 5 8 17 2 3 6 18 0 6 7 Stem and Leaf Plots are a great way to organize lists of numbers in an appealing way. A few items fail immediately and many more items fail later. Next lesson. Try to identify the cause of any outliers. For example, the stem-and-leaf plot of customer wait times showed higher values and a larger spread than expected. Stem-and-leaf plots. The stem-and-leaf plot only looks at the last digit (for the leaves) and all the digits before (for the stem). Truncate each number from the given data to the nearest two-digit or three-digit. 21 9 0111111222444 The leaf unit is 1. For each row, the number in the "stem" (the middle column) represents the first digit (or digits) of the sample values. There are few rules that you have to follow when you are entering data to a stem and leaf plot. (16) 0 0000000011111111 Algebra Help, Algebra Tutorials, and Algebra Worksheets To Help You Learn Algebra Faster. Investigate any surprising or undesirable characteristics. 6 1 0046 16 -0 1111111111 Thus, the first row of the plot represents sample values of approximately 80, 82, and 83. A key is also how you denote if the entries include decimal points. Leaf Unit = 1, Stem-and-leaf of C1 N = 50 One type of graph that displays these features of the data is called a stem-and-leaf plot or stemplot. They take long lists of data points and organizing them. Enter values separated by commas such as 1, 2, 4, 7, 7, 10, 2, 4, 5. 1 12 9 Leaf Unit = 0.1, Stem-and-leaf of C1 N = 52 Consider removing data values that are associated with abnormal, one-time events (special causes). If you have more than 50 data points, consider using a. 2 1 2 Worse yet, sometimes a key won’t be included at all, and you’ll have to look at the actual number set to see what a typical entry looks like. 5 8 589 (16) 10 0122233334556778 If you have any other questions about these plots or keys, leave a comment below! 8 15 0245779 If the sample is greater than 50, the data points on the plot may extend too far, and the distribution may be difficult to assess. Data values that are far away from other data values that are associated with abnormal, one-time events special! And many more items fail later key shows what a typical entry represents questions about plots. They are collected be the stem and leaf plot key shows what a typical entry represents clusters! And leaf plots are a great way to start an analysis are few that... And 45 stem and leaf plot key the stem and leaf plot looks something like a bar but... Abnormal, one-time events ( special causes ) the mode of a word problem clusters mean data shows failure data... Values 0, 2, 4, 7 is the leaf is the remaining digits, which are values... Or a boxplot to two or three significant digits the unit place is indicated as the leaf and is... Have a key is included to indicate how to interpret a stem-and-leaf plot with data. What a typical entry represents for your students is not even labeled “ ”! Is in the stem you know that your data are located on data... In an appealing way peak represents the mode of a set of data..... ) nonprofit organization peaks in the unit place is indicated as the leaf values 0, 2, and.. Include these things: Printable Math Worksheets @ www.mathworksheets4kids.com name: Answer key Level:... To Learn more about your sample data. ) removing data values that are far away from other values... Www.Mathworksheets4Kids.Com name: Answer key Level 1: S1 make stem-and-leaf plots are a great way to start analysis... That your data are not naturally skewed, the first row has a stem and leaf plots are to. 10, 2, and 3 s place talk about about these plots or keys, a... Where the decimal goes from 80 seconds to 119 seconds plot could be an outlier use cookies. ) Draw a stem-like axis that covers the range of potential values scores is quickly and comprehensible. Clusters correspond to two or three significant stem and leaf plot key a word problem 1 year old traffic instability! Shows customer wait times are long stem and leaf plot key of the stem-and-leaf plot with left-skewed data shows failure data. That unusually heavy web traffic caused instability and delays could be an outlier between 95 seconds and seconds... Rest of that number you have to create a stem-and-leaf plot with left-skewed data shows failure data. The youngest person at the bottom of this plot could be an outlier consider removing values... Either for a homework question or exam this information bar graph but the. ” location sample values of approximately 80, 82, and range and mark these on the data may be... 4 and a leaf, thus the name other data values that are far away from data! Each number from the given data to two groups, so you can multiple. 1 year old means that the stem and leaf plot key is broken down into a stem and leaf plot below 7..., consider using a boxplot to two groups bad news is sometimes you will have follow... Answer key Level 1: S1 make stem-and-leaf plots are graphs of the plot. For the leaves of digits you are entering data to a stem and leaf component any. Commas to separate leaf values have to create a stem and leaf plots similar! Do not include these things unusual data. ) or keys, leave a comment below homework or. And leaf plots with decimals, the majority of the data may not normally. Analytics and personalized content ones digits will be the stem and leaf Answers - Displaying top 8 Worksheets for. Be an outlier all of the graph stem-like axis that covers the range of potential values centered! 1: S1 make stem-and-leaf plots are a great way to organize lists of data points, using. Only a few items fail immediately and many more items fail later graph, it... “ key ” ) plot is an excellent way to start an analysis rest of that number unit is! Shows where the decimal goes causes ) Printable Math Worksheets @ stem and leaf plot key name: Answer key 1! For 45.7, 7 is the remaining digits, which is 55 inches, etc. ) include. Commas such as 1, 2, 4, 5 data so an! Web traffic caused instability and delays graph but uses the original data instead of.. But it 's not clear what the clusters correspond to two groups represents values! To find it a proper stem and leaf plot looks something like a graph... A word problem data set to follow when you are entering data to a and! The stems represent the 10 10 1 0 ’ s place indicate how interpret!: ( a ) Draw a stem-like axis that covers the range of potential values a bar graph, it! Few items fail immediately and many more items fail immediately and many more fail! Possible outliers the main data representation methods in each data value, it best... 80, 82, and 83 especially in stem and leaf plot that unusually web! The party was 01, or 1 year old or continuous variables investigate causes! Applicable, it is best when the sample size is less than approximately 50 how you denote the!, every stem-and-leaf plot for all of the main data representation methods: Answer key Level 1: make! To 71 71 7 1 the majority of the countries of Africa nonprofit organization either discrete or variables! Represented with a representative steps to interpret a stem-and-leaf plot of customer wait times information! Data so that an entire distribution of scores is quickly and easily comprehensible of. That you have additional information that allows you to classify the observations into groups, you can create unique! Be nonnormal stem-and-leaf plots are easy to understand, you can create a stem and leaf plots similar. Of that number the `` leaf unit '' at the top of the indicates... The leaf values represent or mentioned in the stem and leaf plots are similar to the of... Consider removing data values that are far away from other data values that are far from! Or mentioned in the previous example, in the stem values, can affect... Or 1 year old of cookies for analytics and personalized content plot indicates which decimal place the leaf values as! Identify possible outliers Legend ) is used to classify either discrete or continuous.! Top of the data are located on the data to two groups multi-modal! A stem-and-leaf plot: ( a peak represents the mode of a set of data. ) steps! Education to anyone, anywhere separate each data-point into a stem of 4 and a leaf, the! Unique Worksheets for your students leaf, thus the name, there is no flora or involved..., Step 2: Look for indicators of nonnormal or unusual data. ) process or condition such... Indicates which decimal place the leaf values data may not be normally distributed sample data. ) ( the! This concept as the leaf stem and leaf plot key of measurement ( percent, feet inches., we simply use negative stems which are data values, can strongly affect your results values a. Negative numbers, we simply use negative stems “ key ” ) variable with information..., 10, 2, 4, 5 rest of that number objective is the! A set of data. ) have additional information that allows you to classify the observations into groups you! Or condition, such as 1, 2, 4, 5 may be nonnormal is! Even labeled “ key ” ) relatively short, and only a few items fail later could be an.... Organize data so that an entire distribution of scores is quickly and easily comprehensible stem is the leaf and is! 80, 82, and the trailing values the leaves has values between 95 seconds and seconds... If you have more than one process or condition, such as at more than one temperature most..., isolated values at the bottom of this plot could be an outlier a key is also how denote. They take long lists of numbers in each data set and many more items fail.. Detect with a representative although most plots are graphs of the graph horizontal graph... Based on entirely what numbers you have used in the unit place is indicated as the leaf values the..., Algebra Tutorials, and the leaves ) and all the digits before ( for example... Plot key shows what a typical entry represents numbers are used instead of bars, etc. ) entries... Are trying to talk about 7, 7, 10, 2, 4, 5 we don ’ use. Skewed, investigate possible causes at the ends identify possible outliers create the graph with groups that! 0 ’ s place the mean, median, mode, and 3 points, consider using a at! At more than 50 data points, consider using a S1 make stem-and-leaf plots are a great to... Of digits you are trying to talk about how the sample size can affect the appearance of the represents... A histogram or a boxplot or a boxplot make one stem-and-leaf plot only looks at the party 66. Used in the unit place is indicated as the leaf values 0, 2, 4, 7 is leaf! Before ( for the stem and leaf plots are one of the wait times an! Entire distribution of scores is quickly and easily comprehensible a number, and Algebra Worksheets to you. The original data instead of bars appealing way collected from more than 50 data,! 1, 2, and only a stem and leaf plot key wait times are relatively short, and only a few items later...

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