Find the mean of the following frequency dist | vedclass

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(A) The mean $\bar{x}$ is calculated using the formula $\bar{x} = \frac{\sum f_i x_i}{\sum f_i}$.First,calculate $\sum f_i = 12 + 18 + 27 + 20 + 17 +

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$28$

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(A) The mean $\bar{x}$ is calculated using the formula $\bar{x} = \frac{\sum f_i x_i}{\sum f_i}$.First,calculate $\sum f_i = 12 + 18 + 27 + 20 + 17 + 6 = 100$.Next,calculate $\sum f_i x_i = (12 	imes 5) + (18 	imes 15) + (27 	imes 25) + (20 	imes 35) + (17 	imes 45) + (6 	imes 55)$.$\sum f_i x_i = 60 + 270 + 675 + 700 + 765 + 330 = 2800$.Therefore,$\bar{x} = \frac{2800}{100} = 28$.

$x_i$	$5$	$15$	$25$	$35$	$45$	$55$
$f_i$	$12$	$18$	$27$	$20$	$17$	$6$

$x_i$	$3$	$6$	$9$	$12$
$f_i$	$1$	$2$	$3$	$4$

Find the mean of the following frequency distribution:

$x_i$ $5$ $15$ $25$ $35$ $45$ $55$

$f_i$ $12$ $18$ $27$ $20$ $17$ $6$

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Find the mean of the following frequency distribution: $x_i$ $5$ $15$ $25$ $35$ $45$ $55$ $f_i$ $12$ $18$ $27$ $20$ $17$ $6$