If the variance of the frequency distribution is 160 , then the value of $c \in N$ is $\boxed{\begin{array}{*{20}{c}} x&c&{2c}&{3c}&{4c}&{5c}&{6c} \\ f&2&1&1&1&1&1 \end{array}}$

JEE MATHEMATICS MCQ: STATISTICS

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Application +4 | -1

If the variance of the frequency distribution is 160 , then the value of

c \in N

\boxed{\begin{array}{cccccccccccccccccccc} x&c&{2c}&{3c}&{4c}&{5c}&{6c} \\ f&2&1&1&1&1&1 \end{array}}

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Correct option: C

Option C (7) is correct because it is the value of c that makes the variance of the given frequency distribution equal to 160.

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