Question

Let z be a random variable with a standard normal distribution. Find the indicated probability. (Round your answer to four decimal places.) P(−1.24 ≤ z ≤ 2.64) =

Shade the corresponding area under the standard normal curve.

Answer 1

solution

P(−1.24 ≤ z ≤ 2.64)

= P(Z <2.64 ) - P(Z <-1.24 )

Using z table,  

=0.9959-0.1075   

probability=0.8884