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  4. If mean of 3, 4, x, 7, 10 is 6, then the value of x is

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Q. If mean of $3$, $4$, $x$, $7$, $10$ is $6$, then the value of $x$ is

Statistics

Solution:

Mean $= \frac{\text{Sum of observations}}{\text{Number of observations}}$

$\Rightarrow 6 = \frac{3+4+x+7+10}{5}$

$\Rightarrow x = 30-24=6$