E-PolyLearning

 46. If the z-score of normal distribution is 2.5, the mean of the distribution is 45 and the standard deviation of normal distribution is 3 then the value of x for a normal distribution is a. 97.5 b. 47.5 c. 37.5 d. 67.5

 47. If the μ is equal to 25 then the value of mean for exponential probability distribution is a. 0.4 b. 0.08 c. 0.07 d. 0.04