Please write This homework in Informal letter you are Joe or Gabriel. write a letter to your friend describing your boarding school in about 120 to 140 word's​ anwer it guys in right way​ be fast Please HELP​

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 between 80 and 120.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 between 80 and 120.