Pz 68 Pz 153 SolutionThis is a question relating to the Sta

Solution

This is a question relating to the Standard Normal distribution.

P (z> 1.53) = 1- P (z<1.53)

We can find P(z<1.53) using the table for Standard Normal Probabilities (available on the internet).

P (z<1.53)= 0.93699

Therefore, P (z>1.53) = 1 - 0.93699 = 0.06301

Simillarly, for P (z > -0.68) = P (z< +0.68)

Using the table for standard normal probabilities, P ( z<0.68) = 0.75175