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Create and Interpret Stem & Leaf Plots 1Create and Interpret Stem & Leaf Plots 1
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Question 1 of 7
1. Question
The data shows the number of hours worked in a week by a group of 20 employees. Arrange the data in a stem & leaf plot.12 28 14 13 19 21 32 34 33 28 18 29 24 23 32 17 19 34 38 16 Enter the value for each respective column in the table below-
Stem Leaf (1) (2) (3) (4) (6) (7) (8) (9) (9) (2) (1) (3) (4) (8) (8) (9) (3) (2) (2) (3) (4) (4) (8)
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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).First, identify all the possible first digits of the scores and list them in the Stem column.Stem Leaf 1 2 3 Next, read across the data while listing them to their corresponding stem.List the scores’ last digit to the Leaf column.12 28 14 13 19 21 32 34 33 28 18 29 24 23 32 17 19 34 38 16 Stem Leaf 1 2 4 2 8 3 Continue doing this until all scores are listed.Stem Leaf 1 2 4 3 9 8 7 9 6 2 8 1 8 9 4 3 3 2 4 3 2 4 8 Finally, arrange the values on the Leaf column in ascending order.Stem Leaf 1 2 3 4 6 7 8 9 9 2 1 3 4 8 8 9 3 2 2 3 4 4 8 Stem Leaf 1 2 3 4 6 7 8 9 9 2 1 3 4 8 8 9 3 2 2 3 4 4 8 -
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Question 2 of 7
2. Question
This stem & leaf plot shows the marks of 23 students in a science quiz. Find the mode.Stem Leaf 4 5 1 0 5 3 2 6 8 4 6 8 3 4 3 3 7 9 1 6 5 8 8 7 2 8 9 5 1 - Mode = (63)
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The mode is the most frequent score in a data set.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).To view repeating numbers easier, arrange the values on the Leaf column in ascending order.Stem Leaf 4 0 1 5 5 2 3 4 6 8 6 3 3 3 4 8 7 1 5 6 8 9 8 2 7 8 9 1 5 Next, find the score that repeats the most under the Leaf column.Stem Leaf 4 0 1 5 5 2 3 4 6 8 6 3 3 3 4 8 7 1 5 6 8 9 8 2 7 8 9 1 5 Notice that in Stem 6, the Leaf 3 appears thrice.Hence, the mode is 63, which is the two numbers combined.Mode=63 -
Question 3 of 7
3. Question
This stem & leaf plot shows the marks of 23 students in a science quiz. Find the range.Stem Leaf 4 5 1 0 5 3 2 6 8 4 6 8 3 4 3 3 7 9 1 6 5 8 8 7 2 8 9 5 1 - Range = (55)
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Range Formula
Highest Score-Lowest ScoreRemember
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).First, arrange the values on the Leaf column in ascending order.Stem Leaf 4 0 1 5 5 2 3 4 6 8 6 3 3 3 4 8 7 1 5 6 8 9 8 2 7 8 9 1 5 Next, find the highest and the lowest score. This will be the numbers at the bottom and top columns.1 5
Stem Leaf 4 0 1 5 5 2 3 4 6 8 6 3 3 3 4 8 7 1 5 6 8 9 8 2 7 8 9 Highest Score = 95 Lowest Score = 40 Finally, subtract the lowest score from the highest score to get the rangeRange = Highest Score-Lowest Score Finding the range = 95-40 Substitute values = 55 Evaluate Range=55 -
Question 4 of 7
4. Question
This stem & leaf plot shows the marks of 23 students in a science quiz. Find the median.Stem Leaf 4 5 1 0 5 3 2 6 8 4 6 8 3 4 3 3 7 9 1 6 5 8 8 7 2 8 9 5 1 - Median = (64)
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The median is the middle score in a data set.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).First, arrange the values on the Leaf column in ascending order.Stem Leaf 4 0 1 5 5 2 3 4 6 8 6 3 3 3 4 8 7 1 5 6 8 9 8 2 7 8 9 1 5 Since the total number of scores is 23, the middle score should be the 12th score.232=11.5 and always round up which equals the 12th scoreSimply count the numbers under the Leaf column until you reach the 12th score.Stem Leaf 4 0 1 5 5 2 3 4 6 8 6 3 3 3 4 8 7 1 5 6 8 9 8 2 7 8 9 1 5 The 12th number is along Stem 6, specifically Leaf 4.Hence, the median is 64, which is the two numbers combined.Range=64 -
Question 5 of 7
5. Question
Find the interquartile range of the stem and leaf plot below.Stem Leaf 5 6 7 6 7 2 3 5 5 6 6 8 8 3 4 - IQR = (6)
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Interquartile Range
IQR =QUpper-QLowerA 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).First, since the total number of scores is 11, the middle score should be the 6th score.112=5.5 and always round up which equals the 6th scoreSimply count the numbers under the Leaf column until you reach the 6th score.Stem Leaf 5 6 7 6 7 2 3 5 5 6 6 8 8 1 3 The 6th number is along Stem 7, specifically Leaf 5.Hence, the median is 75, which is the two numbers combined.The median divides the data set into two quartiles, each with 5 values.Find the median of both quartiles to get the lower and upper quartilesLower Half Stem Leaf 5 6 7 6 7 2 3 5 8 Greater Half Stem Leaf 5 6 7 6 6 8 8 1 3 Lower Quartile = 72 Upper Quartile = 78 Finally, use the formula to get the interquartile range.IQR = QUpper-QLower Interquartile Range formula = 78-72 Substitute values = 6 Evaluate IQR=6 -
Question 6 of 7
6. Question
This stem & leaf plot shows the marks of 27 students in a science quiz. Find the mode.
Stem Leaf 3 9 4 9 5 1 2 3 4 4 6 7 9 6 1 1 5 6 7 1 4 6 6 8 2 5 8 9 2 2 2 3 4 5 - Mode = (92)
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The mode is the most frequent score in a data set.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).To view repeating numbers easier, arrange the values on the Leaf column in ascending order.Stem Leaf 3 9 4 9 5 1 2 3 4 4 6 7 9 6 1 1 5 6 7 1 4 6 6 8 2 5 8 9 2 2 2 3 4 5 Next, find the score that repeats the most under the Leaf column.Stem Leaf 3 9 4 9 5 1 2 3 4 4 6 7 9 6 1 1 5 6 7 1 4 6 6 8 2 5 8 9 2 2 2 3 4 5 Notice that in Stem 9, the Leaf 2 appears thrice.Hence, the mode is 92, which is the two numbers combined.Mode=92 -
Question 7 of 7
7. Question
This stem & leaf plot shows the marks of 29 students in a science quiz. Find the range.
Stem Leaf 2 3 5 6 3 3 5 6 8 9 4 2 2 5 6 7 7 7 8 8 9 5 2 4 6 8 8 6 5 8 9 7 4 5 8 7 - Range = (64)
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Range Formula
Highest Score-Lowest ScoreRemember
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).First, arrange the values on the Leaf column in ascending order.Stem Leaf 2 3 5 6 3 3 5 6 8 9 4 2 2 5 6 7 7 7 8 8 9 5 2 4 6 8 8 6 5 8 9 7 4 5 8 7 Next, find the highest and the lowest score. This will be the numbers at the bottom and columns.Stem Leaf 2 3 5 6 3 3 5 6 8 9 4 2 2 5 6 7 7 7 8 8 9 5 2 4 6 8 8 6 5 8 9 7 4 5 8 7 Highest Score = 87 Lowest Score = 23 Finally, subtract the lowest score from the highest score to get the rangeRange = Highest Score-Lowest Score Finding the range = 87-23 Substitute values = 64 Evaluate Range=64
Quizzes
- Find Mean, Mode, Median and Range 1
- Find Mean, Mode, Median and Range 2
- Find Mean, Mode, Median and Range 3
- Create Frequency Tables & Graphs
- Interpret Frequency Tables 1
- Interpret Frequency Tables 2
- Create and Interpret Bar & Line Graphs (Histograms)
- Interpret Cumulative Frequency Tables and Charts 1
- Interpret Cumulative Frequency Tables and Charts 2
- Create Grouped Frequency Tables and Graphs
- Interpret Grouped Frequency Tables
- Create and Interpret Dot Plots (Line Plots) 1
- Create and Interpret Dot Plots (Line Plots) 2
- Finding the Interquartile Range 1
- Finding the Interquartile Range 2
- Create and Interpret Box & Whisker Plots 1
- Create and Interpret Box & Whisker Plots 2
- Create and Interpret Box & Whisker Plots 3
- Create and Interpret Box & Whisker Plots 4
- Create and Interpret Stem & Leaf Plots 1
- Create and Interpret Stem & Leaf Plots 2
- Create and Interpret Stem & Leaf Plots 3
- Create and Interpret Stem & Leaf Plots 4