Exemplar Exercise Problem IX — task. Mathematics CBSE, Class 10.

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An aircraft has

$120$ passenger seats. The number of seats occupied during

$100$ flights is given in the following table :

Number of seats	$100-104$	$104-108$	$108-112$	$112-116$	$116-120$
Frequency	$15$	$20$	$32$	$18$	$15$

Determine the mean number of seats occupied over the flights.

Answer:

The mean is .

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24. Exemplar Exercise Problem IX