Question

The mean of 19 numbers is 35.
One of these numbers is 70.
Determine the mean of the other 18 numbers.
Give your answer correct to 1 decimal place.
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Answer 1

First we find the sum of all values using the mean formula.

Then we subtract the value 70 from the total sum to get the sum of the values without 70 (in order to compute the mean of these values)

Then we compute the mean.

If you have any additional questions ask.

Answer 2

Is the answer 33.1
Hopefully this helps