# Solve this:

Please refer the following question for answer to similar query

https://www.meritnation.com/ask-answer/question/find-the-mean-and-variance-for-the-following-frequency-dist/statistics/6301318

$Fors\mathrm{tan}darddeviationfindthevalueof\sigma \phantom{\rule{0ex}{0ex}}\sigma =\sqrt{{\sigma}^{2}}=\sqrt{variance}\phantom{\rule{0ex}{0ex}}=\sqrt{132}=11.489$

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