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# Find the arithmetic mean of 8, 3, 5, 12 and 10.

### Question

Find the arithmetic mean of 8, 3, 5, 12 and 10.

### Options

A) 7.5

B) 9.3

C) 7.6

D) 11.5

E) 13.5

The correct answer is C.

### Explanation:

Mean $$= \cfrac{8+3+5+12+10}{5} = \cfrac{38}{5} = 7.6$$

## Discussion (4)

• Mean = Sum of numbers
÷
No. of occurrence =
(
8
+
3
+
5
+
12
+
10
)
÷
5

= 7.4

• Mean = Sum of numbers$$\div$$No. of occurrence = $$\left ( 8 + 3 + 5+ 12 + 10 \right )\div 5$$
• Mean $$= \cfrac{8+3+5+12+10}{5} = \cfrac{38}{5} = 7.6$$