Question

Marks secured by 10 students in an examination are :
Roll No.
1
2.
لی
3
4.
5
6
7
8
9
10
arks
43
48
40
56
30
60
38
48
78
31
alculate arithmetic mean.​

Answer 1

Answer:

mean =sum of observations / total number of observations

Step-by-step explanation:

• add all and count
• then divide
• you will get your answer

hope it helps

Answer 2

Step-by-step explanation:

The marks of 10 students is given above

so mean =sum of marks of 10 students/10

=43+48+40+56+30+60+38+48+78+31/10

=472/10

=47.2

The arthimetic mean is 47.2

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