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
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
A report shows the amount (in dollars) spent by each customer in a grocery store. 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 used to represent the group.
Identify the context: The problem describes a report showing the amount spent by each customer in a grocery store.
Determine the scope: If the report includes data for every customer who visited the store during a specific period, it represents a population.
Consider the alternative: If the report only includes data for a selection of customers, it represents a sample.
Conclude based on the information: Since the problem states 'each customer,' it implies that the data set includes all customers, indicating it is a population.
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