Select the table that represents a linear function. (Graph them if necessary.) A. x 0 1 2 3
y 0 1 4 9
B. x 0 1 2 3
y 5 7 9 7
C. x 0 1 2 3
y 13 9 5 1
D. x 0 1 2 3
y 0 1 3 6

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?