**8.Find the area under the standard normal probability distribution between the following pairs of z – scores.**

**a.z=0 and z=1.00**

**b. z=0 and z=2.00**

**c. z=0 and z=3.00**

**d. z=0 and z=0.62**

a. the area under the standard normal probability distribution is

b. the area under the standard normal probability distribution is

c. the area under the standard normal probability distribution is

d. the area under the standard normal probability distribution is

**9. Find the following probability for the standard normal random variable z.**

P( – 1.5 ≤ z ≤ 1.5)

**10. Suppose the random variable x is best described by a normal distribution with µ = 26 and ? = 5. Find the z score that corresponds to each of the following x – values.**

a. x=17 b. x=26 c. x=11 d. x=13 e. x=20 f. x=32