Question

Suppose a normal distribution has a mean of 50 and a standard deviation of
3. What is P(x≤44)?

Answer 1

0.025

Explanation:

Answer 2

.0228

Explanation:

44 is two standard deviations below the mean z-score = -2

look up z-score = -2 in z-score table

= .0228 or 2.28 %