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The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

Explain how you can use the associative property to evaluate (7x50)x4.