1. A sample of college students enrolled in a General Chemistry course is asked to indicate the number of hours they spent studying for their midterm exam. If you learn the mean of this distribution is 15, what should you conclude? A. Half of the students in the sample spent more than 15 hours studying for their midterm exam. B. The majority of the students in the sample spent less than 15 hours studying for their midterm exam. C. "15 hours" was the most frequent response given when each student was asked how much time they spent studying for the midterm exam. D. The average amount of time spent studying for the midterm exam by this sample of college students was 15 hours. E. All of the above answers are correct interpretations.

2. The ___________________ are generally less affected by outliers than the ___________________. A. median and standard deviation; mean and interquartile range B. mean and standard deviation; median and interquartile range C. median and mean; interquartile range and standard deviation D. interquartile range and standard deviation; median and mean E. median and interquartile range; mean and standard deviation

3. Although McDonald's is a restaurant found all over the world, items on the McDonald's menu cost a different amount?in U.S. dollars?depending on what country you are in. Take the Big Mac, for example. In 2021, the cost of the Big Mac, in U.S. dollars, was recorded for a sample of 56 countries. This data is summarized in the boxplot below, and the following statistics were computed: Mean = $3.63, Standard Deviation = $1.21, Minimum = $1.25, Q1 = $2.69, Median = $3.59, Q3 = $4.12, Maximum = $7.29. Based on this information, which one of the following statements is correct?

12 10 8 Frequency 6 4- 2- 0 20 40 60 80 100 Money spent in a weekNuclear engineer Police Profession officer Musician 0 20 40 60 80 100 120 140 Annual Income (thousands of dollars)