Question 7 1 Point In professional cricket one of the generally accepted requirements for a bowler to be considered express is that they have to be able to bowl above 145 km/hr. With this in mind, a contingent of pace bowlers had a bowling competition and measured the speed of their quickest ball. They found that the overall mean was 138.9km/hr with a standard deviation of 8.6 km/hr. What is the probability that a 11 fast bowlers chosen randomly from this group will have a mean maximum speed greater than 145km/hr? Approx 0.25 (25%) B Approx 0.01 (1%) C Approx 0.75 (75%) D Approx 0.99 (99%) Question 8 1 Point A group of athletes all run a 100m sprint. The average of their times is 12.3s, with a standard deviation of 1.1s. If an athlete is randomly selected from the group, what is the probability that their time will be greater than 10.9s? A 0.1 0.000029 C 0.25 D 0.9