The mean deviation about the mean for the dat | vedclass

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(B) Step $1$: Calculate the mean $(\mu)$ of the data.$\mu = \frac{4+7+8+9+10+12+13+17}{8} = \frac{80}{8} = 10$.Step $2$: Calculate the mean deviation

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$3$

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(B) Step $1$: Calculate the mean $(\mu)$ of the data.$\mu = \frac{4+7+8+9+10+12+13+17}{8} = \frac{80}{8} = 10$.Step $2$: Calculate the mean deviation about the mean using the formula $\frac{1}{N} \sum |x_i - \mu|$.$|4-10| = 6$$|7-10| = 3$$|8-10| = 2$$|9-10| = 1$$|10-10| = 0$$|12-10| = 2$$|13-10| = 3$$|17-10| = 7$Sum of absolute deviations $= 6+3+2+1+0+2+3+7 = 24$.Mean deviation $= \frac{24}{8} = 3$.

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

$x_i$	$3$	$9$	$17$	$23$	$27$
$f_i$	$8$	$10$	$12$	$9$	$5$

The mean deviation about the mean for the data $4, 7, 8, 9, 10, 12, 13, 17$ is

Similar Questions

Find the mean deviation about the mean for the following data:
Height in $cm$ Number of boys
$95-105$ $9$
$105-115$ $13$
$115-125$ $26$
$125-135$ $30$
$135-145$ $12$
$145-155$ $10$

Find the mean deviation about the mean for the data $4, 7, 8, 9, 10, 12, 13, 17$.

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

$x_i$ $3$ $9$ $17$ $23$ $27$

$f_i$ $8$ $10$ $12$ $9$ $5$

The mean deviation of the numbers $3, 4, 5, 6, 7$ is

Find the mean deviation about the median for the given data: $340, 150, 210, 240, 300, 310, 320$.

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