Jenjengaralzaviz
Answered

1. Full-time Ph.D. students receive an average of P12837 per year. If the average
salaries are normally distributed with a standard deviation of P1500, find these
probabilities​

Sagot :

Svserenityviz

Answer:

a. The student makes more than P15000.

z = 15,000 - 12837 / 1500 = 1.442 (use the Z-table to find the probabilities of 1.4) . . .

z= x-m

      σ

x= 15,000  m= 12837   σ = 1500

z = 15,000 - 12837 / 1500 = 1.442 = .9251

1 - .9251 = 0.749

0.749 x 100 = 7.49%

The answer is 7.49%