Posted by tony on .
The amount that airlines speed on food per passenger is normally distributed with means $8.00 and standard deviation $2.00. What is the probability that a randomly selected airline spends more than $12.50?

statistics 
PsyDAG,
Z = (scoremean)/SD
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score.