Statistics and Probability Chapter 7 Name Date Chapter 7 Day 1 Problem Set 1. After conducting a survey at a pet store to see what impact having a pet had on the condition of the yard. The options were good, fair, bad. Is it appropriate to use a scatterplot to display the date? Why or why not? 2. On the axes below, sketch a scatterplot described: a. a strong positive association b. a weak negative association c. no association 3. Identify the explanatory and response variables, and state whether they are categorical or quantitative. a) Researchers measure the heights of children at age 6 and again at age 16. Explanatory: Response: b) A political scientist selects a large sample or registered voters, both male and female, and asks each voter whether they voted for the Democratic or Republican candidate in the last congressional election. Explanatory: Response : c) Cancer patients received one of two treatments (1) radiation or (2) removal of tumor and lymph nodes only followed by radiation. The patients were followed to see how long they lived following surgery. Explanatory: Response