Suppose a compact disk (cd) you just purchased has 1515 tracks. after listening to the cd, you decide that you like 66 of the songs. the random feature on your cd player will play each of the 1515 songs once in a random order. find the probability that among the first 55 songs played (a) you like 2 of them; (b) you like 3 of them; (c) you like all 55 of them.

Aconcession manager at yankee stadium wants to know how temperature affects beer sales. she took a sample of 10 games and recorded the number of beers sold and the temperature in the middle of the game. temperature 80 68 78 79 87 74 86 92 77 84 number of beers 20533 1439 13829 21286 30985 17187 30240 87596 9610 28742 a. draw a scatter plot of the data. b. the manager estimates the regression equation to be: numberofbeers = −100, 678 + 1, 513 ∗ temperature draw this on your scatter plot. c. for one of the estimated points, indicate the residual with ei . d. for that same point, indicate what part of the variation is explained by the model with ˆyi − y¯.