Determine mean using assumed mean method — task. Mathematics State Board, Class 9.

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Find the mean of the children watch TV programmes for the number of hours in the past week using assumed mean method.

Hours	$0 - 5$	$5 - 10$	$10 - 15$	$15 - 20$	$20 - 25$
Number of children	5	11	14	5	8

The mean for the given data is

(Note: If the answer is a whole number, write as it is. If not, round off the answer to

$2$ decimal places and provide the answer.)

$1$

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10. Determine mean using assumed mean method