Q.

The variance of the scores 2, 4, 6, 8 and 10 is

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a

2

b

4

c

6

d

8

answer is D.

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Detailed Solution

Clearly, Variance =1522+42+62+82+102−2+4+6+8+1052⇒  Variance =4×555−36=8
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Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
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