1. Intro to Stats and Collecting Data

In statistics, what is the collection of all observations or measurements on the variables called?

In statistics, bivariate data consist of which of the following?

Which of the following best describes the primary purpose of an introductory statistics course?

Which of the following statements is true about the interquartile range $\mathrm{IQR}$?

Which of the following best describes the difference between a $\mathrm{population}$ and a $\mathrm{sample}$ in statistics?

Which level of measurement consists of categories only?

Which of the following best describes the difference between a $\mathrm{population}$ and a $\mathrm{sample}$ in statistics?

Suppose a hospital emergency room records the number of patients arriving each hour over a week. Which type of variable best describes the $number$ of patients arriving per hour?

In the context of AP Statistics Unit 3, which of the following best describes the purpose of a scatterplot?

In Exercises 21–28, determine which of the four levels of measurement (nominal, ordinal, interval, ratio) best describes the given data.

College Students In order to better plan for the incoming freshman class, a college dean asks each newly admitted student to identify their likely major (physics, business, math, psychology, engineering, law, etc.).

Which of the following best describes how quantitative information differs from qualitative information in statistics?

Which of the following best describes the difference between $\mathrm{quantitative}$ and $\mathrm{qualitative}$ data?

Body Temperatures Listed below are body temperatures from six different subjects measured at two different times in a day (from Data Set 5 “Body Temperatures” in Appendix B).

a. Are the two sets of data independent or dependent? Explain.

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Which of the following best describes the primary purpose of statistics in research?

In introductory statistics software, what does using the $\mathrm{stats}$ command with a $\mathrm{by}$ clause typically accomplish?