The lower limit of the modal class of the following data is:
Class interval
$5 - 10$
$10 - 15$
$15 - 20$
$20 - 25$
$25 - 30$
$30 - 35$
Frequency
$5$
$15$
$6$
$10$
$14$
$9$

25

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15

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10

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30

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Solution

The correct option is B $10$
Modal class is the class that has the highest frequency.
The highest frequency in the table is $15$ which occurs in the interval $10 - 15$ .
The lower limit is the smallest in the class interval.
Therefore, the lower limit in the class interval $10 - 15$ is $10$ .

Suggest Corrections

Class-interval:	10−15	15−20	20−25	25−30	30−35	35−40
Frequency:	30	35	75	40	30	15

Class interval	$5 - 10$	$10 - 15$	$15 - 20$	$20 - 25$	$25 - 30$	$30 - 35$
Frequency	$5$	$15$	$6$	$10$	$14$	$9$

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