Practicing Success
The average of 20 values is 27. If each value is multiplied by 3, then the new average is: |
91 61 81 71 |
81 |
Sum of 20 values = 27 x 20 = 540 If each value is multiplied by 3, then new sum of 20 values = 540 x 3 = 1620 New average = \(\frac{1620}{20}\) = 81 |