If X is a normal random variable with a mean of 78 and a standard deviation of 5, find the following probabilities:
a) P(X ≥ 78) |
(1 Mark) |
||||
b) P(X ≥ 87) |
(1 Mark) |
||||
c) P(X ≤ 91) |
(1 Mark) |
||||
d) P(70 ≤ X ≤ 77) |
(1 Mark) |
Get Answers For Free
Most questions answered within 1 hours.