Assume that adults have IQ scores that are normally distributed with a mean of mu = 100 and a standard deviation sigma = 15. Find the probability that a randomly selected adult has an IQ between 87...

Assume that adults have IQ scores that are normally distributed with a mean of mu = 100 and a standard deviation sigma = 15. Find the probability that a randomly selected adult has an IQ between 87 and 113 and type an integer or decimal rounded to four decimal places.  Make sure to use the positive or negative z score charts attached, in the eBook on MSL, or in a hardcopy of the textbook.