Math, asked by simran7890, 10 months ago

Hola guys!!!!! Anyone please explain me how to find mean with sigma sign!!!!!!!!!!

simran7890: same :)

simran7890: can't understand that one

Anonymous: Well you want it for grouped or ungrouped frequency distribution !?

simran7890: both

simran7890: it will be better if u explain me

Answers

Answered by babithathakurpbnueg

sigma is a greek letter .sigma is addition version of factorial.

simran7890: thanx for answer

Answered by Anonymous

$\huge{\underline{\underline{Answer\::-}}}$

Please consider attached for the Answer

In grouped Frequency

>> mean = sum of numbers divided by No. of numbers

= $\huge{\dfrac{ {\sum\limits_{i=1}^{n} x_i}}{n}}$

In ungrouped frequency

>> mean = Sum of (frequency × No.) divided by Sum of frequency

= $\huge{\dfrac{ {\sum\limits_{i=1}^{n} x_i \times f_i}}{{\sum\limits_{i=1}^{n} f_i}}}$

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simran7890: thank you for answer

Anonymous: thanks for brainliest ☺️

simran7890: welcome :)

Anonymous: this took some time but how's my edited answer !!

simran7890: nice in fact very nice

simran7890: appreciated your hard work

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