Originally Posted by

**aargh27** I have the key book but my answers aren't coming up the same so I know I am messing up somewhere. If you can help I'd be very thankful

a)

If the mean salary for high school teachers in the US is $29,835 and the standard deviation is $3000, find the probability that a teacher makes more than $35,000.

So I first have to find the Z score, which would be = 35,000-29835 / 3000

Z= 1.72166

which = .4657 (around) after looking at a chart

and to find the probability above 35,000, I had .5000 - .4657 = .0341