If every term of the statistical data consisting of n terms is decreased by 2, then the mean of the data:... | MCQ 1m | Maths | SuperPadhai

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MCQ1 markYear: 2023EasyCBSE Class 10

statisticsmeanproperties

Question

If every term of the statistical data consisting of

n

terms is decreased by

2

, then the mean of the data:

Solution

1

If each term decreases by

2

, new mean

= \frac{\sum ( x _{i} - 2 )}{n} = \frac{\sum x _{i}}{n} - 2 = \overset{x}{ˉ} - 2

. Mean decreases by

2

.

+1 mark

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