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$The mean of n items is \bar{X} .If the first term, second term, third term \dots . is increased by$ $1,2,3… and so on. Then new mean is$

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Correct option is B

We have a1+1,a2+2,a3+3,….an+n∴ Mean =a1+a2+….+an+(1+2++…n)n =X¯+1+2+3+….+nn =X¯+n(n+1)2n

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

The mean of n items is X¯ .If the first term, second term, third term …. is increased by 1,2,3… and so on. Then new mean is

Remember concepts with our Masterclasses.

Ready to Test Your Skills?

free study material

$The mean of n items is \bar{X} .If the first term, second term, third term \dots . is increased by$ $1,2,3… and so on. Then new mean is$