The following frequency distribution shows the GMAT scores o

The following frequency distribution shows the GMAT scores of a sample of MBA students For the above data, compute the mean GMAT score 490 501 513 525

Solution

To find the mean of a frequency distribution, we take mid point of each class interval as x

Hence mean = 501

Option 2 is right

Gmat score
Interval	Mid point x	Frequency	x*f
300-450	350	7	2450
400-500	450	13	5850
500-600	550	10	5500
600-700	650	5	3250
700-800	750	2	1500
Total		37	18550
		Mean	Sum/freq	501.3514