Given a normal distribution with μ=51 and sigma=8​, and given you select a sample of n=100​, complete parts​ (a) through​(d).
a. What is the probability that X is less than 49​? P(X= 0.00620.0062
​b. What is the probability X is between 49 and 50.5​?​P(49< X < 50.5)