7. caitlin and greg collect stamps. each starts with a collection of 50 stamps. caitlin adds 15 stamps to her
collection each week greg adds 1 stamp to his collection the first week, 3 stamps the second week. 5
stamps the third week, and so on identify the function that gives the number of stamps in each collection
as linear or nonlinear. which collection is growing more quickly between week 5 and week 6?

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.