Find the mean of the following data-2 7 23 2531X-211 0 2 27 2 29 2 27 15 20 3 16 f- 15 16 18 16 15 13 -

nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; Calculation of Mean xi fi fixi 19 13 ...

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Mean

Find the mean...

Question

Find the mean of the following data:

x: 19 21 23 25 27 29 31

f: 13 15 16 18 16 15 13

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Solution

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$x$	$19$	$21$	$23$	$25$	$27$	$29$	$31$
$f$	$13$	$15$	$16$	$18$	$16$	$15$	$13$

x:	19	21	23	25	27	29	31
f:	13	15	16	18	16	15	13

Prepare a frequency distribution by inclusive method taking class interval of 7 from the following data:

$2 + 2^{2} + 2^{3} + 2^{4} + 2^{5} + 2^{6} + 2^{7} + 2^{8} + 2^{9} + 2^{10} + 2^{11}$ =___

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