Assume the average selling price for houses in a certain county is $363 comma 000

363,000 with a standard deviation of $45 comma 000

45,000.

a) Determine the coefficient of variation.

b) Caculate thez-score for a house that sells for $346 comma 000

346,000.

c) Using the EmpiricalRule, determine the range of prices that includes 99.7

99.7% of the homes around the mean.

d) UsingChebychev's Theorem, determine the range of prices that includes at least 89

89% of the homes around the mean.