InterviewSolution
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For the frequency distribution |
Answer» `SD=SQRT((Sigmaf_(i)d_(i)^(2))/N-((Sigmaf_(i)d_(i))/N)^(2))` =sqrt(137/60-(37/60)^(2) ) `sqrt(2.2833-(0.616)^2) `=sqrt(2.2833-0.3794)` `sqrt(1.9037)=1.38` |
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