Assume the average selling price for houses in a certain county is

$351,000with a standard deviation of $33,000. a) Determine the coefficient of variation.

b) Caculate the z-score for a house that sells for

$333,000.

c) Using the Empirical Rule, determine the range of prices that includes

99.7%

of the homes around the mean.

d) Using Chebychev's Theorem, determine the range of prices that includes at least

80%

of the homes around the mean