4. Indicate whether you expect positive or negative correlation for the following pairs of variables, labeled X and Y. For each pair, state whether X determines Y, Y determines X, or both. a. The use of umbrellas (X) and a thunderstorm (Y). b. The price of theater tickets (X) and the number of theatergoers (Y). c. Weekly earnings of a worker (X) and the number of hours a week she works at her job (Y). d. The number of children who were vaccinated against a disease (X) and the number of children who currently suffer from that disease (Y). e. Sunrise (X) and crowing roosters (Y). 9. Identify whether the following policy statements are positive or normative. Explain. a. The price of gasoline is too high. b. The average price of gasoline rose to a record high of $4.02 in June 2008. c. Forty-four million Americans lack access to health insurance. d. The government needs to provide basic health care to the uninsured. e. A collapse in the stock market will affect many Americans