A bag contains: • 5 blue marbles • 3 green marbles • 2 red marbles What is the probability of randomly choosing a blue marble on the first pick, not replacing it, and then randomly choosing a green marble on the second pick? A. 4/5 B. 3/20 C. 1/6 D. 1/15

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?