Table of contents
- 1. Intro to Stats and Collecting Data55m
- 2. Describing Data with Tables and Graphs1h 55m
- 3. Describing Data Numerically1h 45m
- 4. Probability2h 16m
- 5. Binomial Distribution & Discrete Random Variables2h 33m
- 6. Normal Distribution and Continuous Random Variables1h 38m
- 7. Sampling Distributions & Confidence Intervals: Mean1h 3m
- 8. Sampling Distributions & Confidence Intervals: Proportion1h 12m
- 9. Hypothesis Testing for One Sample1h 1m
- 10. Hypothesis Testing for Two Samples2h 8m
- 11. Correlation48m
- 12. Regression1h 4m
- 13. Chi-Square Tests & Goodness of Fit1h 20m
- 14. ANOVA1h 0m
2. Describing Data with Tables and Graphs
Stemplots (Stem-and-Leaf Plots)
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
A stemplot contains the row 2|0024555789. List the data points displayed in this row.
A
20, 22, 24, 25, 27, 28, 29
B
2, 0, 0, 2, 4, 5, 5, 5, 7, 8, 9
C
20, 20, 22, 24, 25, 25, 25, 27, 28, 29
D
2, 0, 2, 4, 5, 7, 8, 9

1
Understand the structure of a stemplot: The number to the left of the vertical bar (|) is the 'stem,' and the numbers to the right are the 'leaves.' Each leaf represents the last digit of a data point, while the stem represents the leading digits.
Identify the stem for the given row: In this case, the stem is '2,' which means all data points in this row will start with '2.'
Combine the stem with each leaf: For each leaf (0, 0, 2, 4, 5, 5, 5, 7, 8, 9), append it to the stem '2' to form the data points. For example, the first leaf '0' becomes '20,' the second leaf '0' also becomes '20,' and so on.
List all the data points: After combining the stem with each leaf, the data points are 20, 20, 22, 24, 25, 25, 25, 27, 28, 29.
Double-check for accuracy: Ensure that each leaf has been correctly combined with the stem and that no leaves have been omitted or misinterpreted.
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