Question 17 (Mandatory) (1 point) Arianna recorded data on the amount of rainfall in a given week and the depth of water in the local creek at the end of the week, as shown. The creek will overflow if the depth exceeds 6 m. What level of rainfall will result in a flood warning? 5- 3 Depth_m 2. N . 6 8 10 12 Rainfall_mm Depth_m = 0.483Rainfall_mm + 0.067; r2 = 0.99 A/Question 13 {Mandatory} (1 point} A chain of resorts in northern Ontario rents a total of 1000 rooms. The CEO of the chain suspects that the number of rooms booked on a summer weekend is related to the cost of gasoline. The line of best fit for the number of rooms rented, y, in hundreds, versus the cost of gasoline, x. in dollars per litreI appears to follow the equation J'= 41-35\" 24-1. The data show T80 bookings for a price of $1.35IL What is the residual for this datum? Question 19 (Mandatory) (1 point) Darien has collected data on drownings and ice cream sales over the same summer holiday weekend for several years, as shown. Does the data support a correlation between these two variables? Is a cause and effect relationship likely? What advice would you give Darien for further analysis? 12 10 8- IceCream_Sales (thousands) N 6 10 Drownings IceCream_Sales = 1.14e+03Drownings - 4.1e+02; r2 = 0.97