Match the term to its definition.
1. {1, 2, 3, 4, }
2. {0, 1, 2, 3, 4, }
3. {, -3, -2, -1, 0, 1, 2, 3, 4, }
4. first, second, third,
integers
whole numbers
ordinal numbers
natural numbers

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?