Which figure could be the result of dilating this triangle with a scale factor greater than 1?
10 fy
8
7
5+
4
3
2
1 2 3 4 5 6 7 8 9 10 x

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?