# ICSE Class 10 Maths Arithmetic Mean of Grouped Data

## Q.

The mean of 10 observations is 8, and if each observation is divided by 2, then the new mean is

## Q.

The mean of 8 numbers is 20. If 3 is subtracted from every number, then what will be the new mean?

## Q.

Which of the following is the formula for mean using the step deviation method?

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