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
1. Intro to Stats and Collecting Data
Intro to Stats
Struggling with Statistics?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
You collect the test scores of every other student in a class. Is this data set a population or sample?
A
Population
B
Sample

1
Understand the definitions: A 'population' includes all members of a specified group, while a 'sample' is a subset of the population.
Identify the group of interest: In this problem, the group of interest is 'every student in a class'.
Determine the data set: The data set consists of 'every other student in a class', which means not all students are included.
Compare the data set to the group of interest: Since the data set does not include all students, it is a subset of the population.
Conclude that the data set is a 'sample' because it represents only a part of the entire group of students in the class.
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