Fifteen athletes compete in the triple-jump event at a grand prix meeting. the distances (d cm) that they jump are normally distributed according to d=N(17.1,0.04).
In the first half of the competition, the athletes have to jump a distance of 17.15m to qualify for the final section. How many athletes would you expect, the nearest whole number, to achieve this?
maths help needed urgently watch
- Thread Starter
- 07-02-2010 23:20
- Study Helper
(Original post by sammy3000)
- 08-02-2010 08:35
Each person qualifying is an independent event with the same probability. What distribution does that suggest? And what's its expectation?