JEE Main | 2014Math miscellaneousHard
Question
The variance of first 50 even natural numbers is
Options
A.437
B.
C.
D.833
Solution
Variance = 
⇒
= 3434 - 2601
⇒ σ2 = 833
⇒
= 3434 - 2601
⇒ σ2 = 833
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