Question

Find the mean of the first five pair of composite numbers.​

Answer 1

Answer:

Hence, MEAN OF FIRST FIVE COMPOSITE NOS IS 7.5.

Step-by-step explanation:

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Answer 2

Answer:

Composite numbers are the numbers that have at least one divisor other than 1 and itself. So, the first five composite numbers are: 4, 6, 8, 9, 10 as all these numbers have smaller positive integers as their factors and thus have at least one divisor other than 1 and themselves.

Now, we have to calculate the mean of the numbers: 4, 6, 8, 9, 10.

Mean of n observations can be calculated easily by using the formula X¯=∑xin where xi’s are the observations and n is the total number of observations. In other words, the mean of n observations can be calculated by simply adding all the numbers and then dividing their sum by the number of observations, n.

Now, X¯=(4+6+8+9+105)

Doing the calculations and simplifying further, we get,

⇒X¯=375

⇒X¯=7.4

So, the mean of first five composite numbers is 7.4

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