What is the mean deviation of the numbers 1, | vedclass

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(B) The given set of numbers is $1, 2, 3, 4, 5$.First,calculate the mean $(\overline{x})$:$\overline{x} = \frac{1 + 2 + 3 + 4 + 5}{5} = \frac{15}{5} =

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$1.2$

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(B) The given set of numbers is $1, 2, 3, 4, 5$.First,calculate the mean $(\overline{x})$:$\overline{x} = \frac{1 + 2 + 3 + 4 + 5}{5} = \frac{15}{5} = 3$.Next,calculate the mean deviation about the mean using the formula $\frac{\sum |x_i - \overline{x}|}{N}$:$|1 - 3| = 2$$|2 - 3| = 1$$|3 - 3| = 0$$|4 - 3| = 1$$|5 - 3| = 2$Sum of absolute deviations $= 2 + 1 + 0 + 1 + 2 = 6$.Mean deviation $= \frac{6}{5} = 1.2$.

${x_i}$	$2$	$5$	$6$	$8$	$10$	$12$
${f_i}$	$2$	$8$	$10$	$7$	$8$	$5$

Height in $cm$	Number of boys
$95-105$	$9$
$105-115$	$13$
$115-125$	$26$
$125-135$	$30$
$135-145$	$12$
$145-155$	$10$

$x_i$	$10$	$30$	$50$	$70$	$90$
$f_i$	$4$	$24$	$28$	$16$	$8$

What is the mean deviation of the numbers $1, 2, 3, 4, 5$?

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Find the mean deviation about the mean for the following data:

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${f_i}$ $2$ $8$ $10$ $7$ $8$ $5$

Find the mean deviation about the mean for the following data:
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$105-115$ $13$
$115-125$ $26$
$125-135$ $30$
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$145-155$ $10$

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Let $\bar{X}$ and $M.D.$ be the mean and the mean deviation about $\bar{X}$ of $n$ observations $x_i,$ $i = 1, 2, \dots, n.$ If each of the observations is increased by $5,$ then the new mean and the mean deviation about the new mean,respectively,are

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