Combine the like terms in the equation from part C of question 1 to simplify it.

Which of these tables represents a non-linear function?

Determine the solution for mc001-1.jpeg

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?