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

PDF chapter test TRY NOW

Calculate the mean of the scores of

$20$ students in a mathematics test :

Marks	$10-20$	$20-30$	$30-40$	$40-50$	$50-60$
Number of students	$2$	$4$	$7$	$6$	$1$

Answer:

The mean is .

[Note: Enter the answer in to two decimal number.]

Did you find an error?

20. Exemplar Exercise Problem V