If there are 13 values in a data set in order from smallest to largest what is the third quartile of the data set? a.) the mean of the 8th and 9th values b.) the mean of the 9th and 10th values c.) the mean of the 10th and 11th values d.) the mean of the 7th and 8th values

Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq less than 132. the probability that a randomly selected adult has an iq less than 132 is?