Question

Given that some normally distributed data has a mean of 857.518 and a standard

deviation of 113.181. What is the probability that a randomly sampled datapoint wil
be greater than 1007.174?

Answer 1

10%

Explanation:

(1007.174 - 857.518) / (113.181) means that

1007.174 is 1.32 standard dev ABOVE the mean

z-score = .9066 from z-score chart

means 90% are less and ~~ 10% are this value or more