For a Normal random variable X (mean = , S.D.T. = )

1. Find probabilities for x, (left, right, between area using z table)
ex: P(x < 60) = , P(x > 60) = , P(60 < x < 80) =

2. Find a specific x value given a probability (area)
ex: given P(x < X0) = 0.90, X0 = ?