17 The lifetime of Zaple smartphone batteries, X hours, is n...
17 The lifetime of Zaple smartphone batteries, X hours, is n...
17 The lifetime of Zaple smartphone batteries, X hours, is normally distributed with mean 8 hours and standard deviation 1.5 hours. 17 (a) (i) Find P(X # 8) [1 mark] 17 (a) (ii) Find P(6 <X < 10...
