1) The Z score are normally distributed with mean =0 and standard deviation of=1 if( < < ) = 0. 4314find

2)The random variable x is normally distributed with mean= 80 and standard deviation s = 100. Find the indicated probability.

(70 < < 90)

3) ACT Composite Scores Use the normal distribution

With a = 21 = 5

(a) What percent of the ACT composite scores are less than 19?

(b) Out of 1500 randomly selected ACT composite scores, about how many would you

expect to be less than 19