A) If Y is normal with μ = 200 and σ = 12, what is the probability that Y will be between 186 and 210?
B) If X is normal with μ = 8.48 and σ = 1.60, what is the difference between the two values of X which include the central 70% of the probability?
C) If Z is standard normal, below what value of z is 2% of the probability?
(Recall that μ = 0 and σ = 1 for the standard normal.)