A fruit basket is made with apples and oranges. The ratio of apples to oranges in a fruit basket is 2 to 3. If there are 15 oranges in the basket then how many apples are there

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?