The mean square deviation of \( n \) observations \( x_{1}, x_{2}, ... VIDEO
The mean square deviation of \( n \) observations \( x_{1}, x_{2}, \ldots . x_{n} \) about \( -2 \) and 2 are 18 and 10 respectively. Then S.D. of the given set is :https://bit.ly/YTAI_PWAP https://www.pw.live
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