Math Statistics Plese see below

timer Asked: May 19th, 2015

Question description

Suppose IQ's are well described by a normal model with means 100 and standard deviation 16. Use the normalcdf and invNorm functions to answer the following:

a) what percent of IQ's would you expect to be between 112 and 132?

b) what percent of IQ's would you expect to be under 90?

c) what percent of IQ's would you expect to be over 80?

d) What IQ is required to be in the to 3 percent of all IQ's

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