A) \[4\]
B) \[2\]
C) \[\sqrt{2}\]
D) \[2\sqrt{2}\]
Correct Answer: B
Solution :
\[{{x}_{1}}+...+{{x}_{4}}=44\] \[{{x}_{5}}+...+{{x}_{10}}=96\] \[\overline{x}=14,\Sigma {{x}_{i}}=140\] Variance\[=\frac{\Sigma x_{i}^{2}}{n}-{{\overline{x}}^{2}}=4\] Standard deviation = 2You need to login to perform this action.
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