Question

The purchase value of transactions at a grocery store is normally distributed with a mean
of N$ 244 and a variance of 4624 (N$ squared).
a) What is the maximum purchase value of transactions for the lowest-spending 33%
of grocery store customers? (5)
b) What is the probability that the purchase value of transactions of grocery store
customers are between N$ 159.00 and N$ 271.20?

Answer 1

Answer:

Step-by-steRationalise then answer 3/sqrt 18 + 5/ sqrt 72p explanation: