Posted by luke on .
All deal with a random variable X that follows a normal probability distribution with mean equal to 37 and a standard deviation of 5.
Compute P(X < 39)
Compute P(X < 29 or X > 41)
Compute P(X > 30)
Find the 42nd percentile for this distribution.

statistics 
PsyDAG,
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.
See your later post.