Question

7.
The marks obtained out of 50 by 100 students in a test in science are given below. Find the
mean of marks awarded to the students.
Marks (x)
15
20
22
24
25
30
35
38
No. of students fi
5
8
11
20
23
18
13
2

Answer 1

Answer:

Mean=(75+160+242+480+575+540+455+76) /(5+8+11+20+23+18+13+2)

=2603/100

=26.03