CBSE Class 11-commerce Answered

Marks. More than 0 More than 10 More than 20 More than 30 More than 40 More than 50 No.of students 50 46 40 20 10 3 Find mean by direct method

Asked by Rajulsampat5 | 23 Feb, 2020, 05:05: PM

Expert Answer

Marks. No. of students

More than 0 50

More than 10 46

More than 20 40

More than 30 20

More than 40 10

More than 50 3

The above table can be written as

$begin mathsize 16px style straight x with bar on top equals fraction numerator begin display style stack sum straight f with straight i below end style straight x over denominator sum straight f end fraction equals 1440 over 50 equals 28.8 end style$