Question

9
B Solve. .
(1) The marks obtained by the students in an examination of 400 marks
is given in the following frequency distribution table. Find the mean
of the distribution.
Marks
200-240 240-280 280-320 320-360 360-400
Frequency
10
20
30
24
16​

Answer 1

Answer:

first add upper class and lower class and dive it by 2

Explanation:

then see the pic