Kendra has been saving for a stereo she has 105 saved and plans to save $20 per month until she can buy the stereo if the studio cause 345 how many more months will kendra need to save so she can buy the stereo

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.