1)IfZis the standard normal random variable, find Pr[Z< 1.33].

2)IfZis the standard normal random variable, what is Pr[Z< - 1.53]?

3)IfZis the standard normal random variable, find Pr[0

4)Findksuch that Pr[Z

5)Let X be a normal random variable with E(X) = 20 and(X)=10.Find Pr[X< 22].

6)If X is a normal random variable with mean=1000and standard deviation=10, what is Pr[990 < X < 1020]?

7)If X is a normal random variable with unknown meanx, standard deviationx = 4, and Pr[X < 15] = .9955, findx.