Find the circumference of a circle with a diameter of a circle is 16 cm Use = 3.14
A 25.12 cm
B) 50.24 cm
C 100.48 cm
D 401.92 cm

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.