The mean weight of 8 numbers is 15. If each number is multiplied by 2, what will be the new mean?
We have,
The mean weight of 8 numbers is 15
Then, the sum of 8 numbers = 8 * 15
= 120
If each number is multiplied by 2
Then, New mean = 120 * 2
= 240
Therefore, new mean =
= 30