Question

Find the mean of the integers 5, -15, 7, -13, 1

Answer 1

5 + (-15) = -10. -10 + 7 = -3. -3 + (-13) = -16. -16 + 1 = -15

Mean = -15/5 = -3

Answer 2

(5 - 15 + 7 - 13 + 1 ) / 5

= - 25/5

= - 5

To find mean simply add up the numbers and divide by the number of numbers as shown above.