Grade 12 Stem and Leaf Plot Worksheet
A Grade 12 math worksheet focusing on constructing, interpreting, and analyzing stem and leaf plots, including back-to-back plots and identifying key statistical measures.
Includes
Standards
Topics
Stem and Leaf Plots - Grade 12
Name:
Date:
Score:
Read each question carefully and follow the instructions to construct or interpret the given stem and leaf plots. Show all your work where applicable.
1. The following data represents the scores of 20 students on a recent math test: 78, 92, 85, 71, 63, 98, 80, 75, 88, 91, 68, 70, 83, 95, 72, 86, 79, 90, 81, 74. Construct a stem and leaf plot for this data.
2. Consider the following stem and leaf plot:
Stem | Leaf
1 | 0 2 3
2 | 5 5 7 8
3 | 1 4 6 9
4 | 0 2
Key: 1 | 0 = 10
What is the median of the data represented in the stem and leaf plot?
25
27.5
31
39
3. For the stem and leaf plot in Question 2, the range of the data is and the mode is .
4. Two basketball teams, Team A and Team B, recorded the following points in their last 10 games:
Team A: 85, 92, 78, 101, 90, 88, 95, 76, 82, 99
Team B: 79, 83, 91, 75, 87, 80, 93, 77, 89, 96
Construct a back-to-back stem and leaf plot to compare the performance of the two teams.
5. Based on the back-to-back stem and leaf plot constructed in Question 4, Team A generally scored higher than Team B.
True
False
6. Describe how you can identify the skewness (left-skewed, right-skewed, or symmetrical) of a data set by looking at its stem and leaf plot.
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