Question

Find the arithmetic mean of first five composite numbers

Answer 1

Step-by-step explanation

First 5 composite numbers :

• 4
• 6
• 8
• 9
• 10

Method,

Mean =

$\tt\dfrac{sum \: of \: observations}{number \: of \: observations}$

Solution,

$\</strong><strong>t</strong><strong>t</strong><strong>\</strong><strong>d</strong><strong>frac{4 \: + \: 6 \: + \: 8 \: + \: 9 \: + \: 10}{5}$

Solving,

$\</strong><strong>t</strong><strong>t</strong><strong>\</strong><strong>d</strong><strong>frac{37}{5}$

After Cancellation...

7.4

Hence, the arithmetic mean of first 5 consecutive numbers is 7.4

What are Composite numbers?

The numbers which are divisible besides one and themselves from any number are known as Composite Numbers.