Complete the following problems for homework:

1. What is the mean of the following
numbers? 10, 39, 71, 39, 76, 38, 25

2. What number would you divide by to calculate the mean of 3,
4, 5, and 6?

3. The mean of four numbers is 71.5. If three of the numbers
are 58, 76, and 88, what is the value of the fourth number?

4. Determine the median of the following set of numbers: 40,
61, 95, 79, 9, 50, 80, 63, 109, 42