Question

Sketch the area under the standard normal curve over the indicated interval and find the specified area. (Round your answer to four decimal places.)

The area between

z = 1.39

and z = 2.27 is .

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

P(z ≤ −2.05)

=   

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

P(z ≥ −1.54)

=   

Let z be a random variable with a standard normal distribution. Find the indicated probability. (Enter your answer to four decimal places.)

P(−2.01 ≤ z ≤ 1.13)

=

Answer 1