The results of a car race are shown. determine who drove fastest. explain. (cutwright 35 laps, 84 min)(evans 42 laps, 96.6 min)(loza 38 laps, 102.6 min)

Calculate the mean value (expected value) of the following discrete variable x (10 points): x = 0, 1, 2, 3, 4, 5, 6 p(x) = 0.2, 0.2, 0.15, 0.15, 0.15, 0.1, 0.05