Question

Find the indicated probability:

P(z<0.18 or z>2.13)

I'm stumped and can't find material on how to do this anywhere. I can do something like P(0.18>z<2.13) but not this. PLEASE HAAALLLP!

Answer 1

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability for each Z score.

Either-or probabilities are found by adding the individual probabilities.