Quote:
Originally Posted by newgixxerchic  76.8 -74 = 2.8
2.8/12 = z score
look at the amount on the z table
.5 - (.0910) = that number would be the probability that it was greater than 76.8
I think its 40.90% or .4090 (but don't quote me) |
hold on!
i dont get the .5 - (.0910).
isn't it 1 - .591) = .409 , z score is .233 -btw which gives .591 area. same answer though.