Homework Help: statistics

Posted by tony on Sunday, March 17, 2013 at 9:11pm.

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, Monday, March 18, 2013 at 12:29pm
Z = (score-mean)/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.

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