From the following data identify the median class $:$
$X_{i}$
$0 - 5$
$5 - 10$
$10 - 15$
$15 - 20$
$f_{i}$
$2$
$4$
$2$
$2$

0 - 5

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5 - 10

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10 - 15

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15 - 20

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Solution

The correct option is C $10 - 15$
To find the median class $:$
First add the total number of frequencies.
Here, $f = 10$
$= \frac{(T o t a l n u m b e r o f f r e q u e n c y)}{2}$
So, Median class $= \frac{(10)}{2} = 5$
Hence, the value 5 lies in the class interval 10-15 from the cummulative frequency table.

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Similar questions

$X$	$0 - 5$	$5 - 10$	$10 - 15$	$15 - 20$	$20 - 25$
frequency	$2$	$4$	$6$	$8$	$10$

Class:	$5 - 10$	$10 - 15$	$15 - 20$	$20 - 25$	$25 - 30$	$30 - 35$	$35 - 40$	$40 - 45$
Frequency:	$5$	$6$	$15$	$10$	$5$	$4$	$2$	$2$

Class	$0 - 5$	$5 - 10$	$10 - 15$	$15 - 20$	$20 - 25$
Frequency	$2$	$3$	$10$	$1$	$4$

$x_{i}$	$10$	$15$	$18$	$20$	$25$
$f_{i}$	$3$	$2$	$5$	$8$	$2$

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