3. A quadratic relation in the form y = a(x + h)? – k , has vertex at (3.6) and y– intercept at (0,-5). Use this information to determine the value of a and write the equation of the relation

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.