x y
2 8
3 12
4 16
5 20

which equation represents the relationship described in the table?
a) y = 2x
b) y = 4x
c) y = 3x
d) y = 1 4 x

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.