The distance a wheel moves forward varies directly with the number of rotations. Suppose the wheel moves 56 ft in 8 rotations. What distance does the wheel move in 20 rotations?

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.