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$The mean of a set of numbers is \bar{X} . If each number is divided by 3, then the new mean is$

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Correct option is D

Let x1,x2,…,xn be n numbers. Then X¯=1n∑i=1n xi . If each number is divided by 3 , then the new mean Y is given byY¯=1n∑i=1n xi3=131n∑i=1n xi=X¯3

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Variate x	1	2	3	4	5
Frequency f of x	4	5	y	1	2

The mean of a set of numbers is X¯ . If each number is divided by 3 , then the new mean is

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Ready to Test Your Skills?

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$The mean of a set of numbers is \bar{X} . If each number is divided by 3, then the new mean is$