Find the groups with the highest and the lowest frequency.

'10 - 15' and '20 - 25'

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'0 - 5' and '20 - 25'

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'5 - 10' and '20 - 25'

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'0 - 5' and '5 - 10'

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Solution

The correct option is A '10 - 15' and '20 - 25'
From the table we get the highest frequency as 14, corresponding to the group of '20 - 25' and the lowest frequency as 1, corresponding to the group of '10 - 15'.

Suggest Corrections

Age in Years	:	5-10	10-15	15-20	20-25
Frequency	:	10	15	20	5

Class-interval	$0 - 5$	$5 - 10$	$10 - 15$	$15 - 20$	$20 - 25$	$25 - 30$
Frequency	$5$	$3$	$9$	$10$	$8$	$5$

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

Class	$0 - 5$	$5 - 10$	$10 - 15$	$15 - 20$	$20 - 25$	$25 - 30$
Frequency	$4$	$5$	$7$	$12$	$7$	$5$

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