Question

After every score in a sample is multiplied by 5,the mean is found to be M = 40.What was the value for the original mean?

Answer 1

Since each of the data value is multiplied by 5, the new mean will be 5 times the original mean.

To get the original mean, we need to divide by 5.

Therefore the original mean is given by:

`(40)/(5)=8`

Answer: 8