What type of angle is this

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0

Write the standard form of an equation with (see picture below)

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.