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
Dot Plots
Struggling with Statistics?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Compare the two dotplots, which give the number of siblings students have in Class A and Class B. Which class has more students with 2 siblings?

A
Class A
B
Class B
C
Both Class A and Class B

1
Step 1: Observe the dotplots for Class A and Class B. Each dot represents one student, and the x-axis represents the number of siblings.
Step 2: Focus on the number '2' on the x-axis for both Class A and Class B. Count the number of dots above '2' in each plot.
Step 3: For Class A, count the dots above '2'. This will give the number of students in Class A who have 2 siblings.
Step 4: For Class B, count the dots above '2'. This will give the number of students in Class B who have 2 siblings.
Step 5: Compare the counts from Class A and Class B. The class with the higher count has more students with 2 siblings.
Related Videos
Related Practice