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What is the Average of Composite Numbers upto 20?

Average Calculator

getcalc.com's odd numbers average calculator to find what is the mean or average of composite numbers upto 20.
12 is an average of odd numbers between 1 and 20 mentioned in the below table, by substituting the total sum and count of numbers in the below formula. The corresponding formulas, chart, examples and workout may help students, teachers or professionals to learn, teach or execute the average of odd numbers upto 20.

Numbers Chart

The below is the complete list of odd numbers between 1 and 20 for user reference.

1 to 20 Composite Numbers Chart (4 - 20)
4689101214151618
20

How to Find the Average of Composite Numbers between 1 and 20?

The below workout with step by step calculation shows how to find what is the average of composite numbers between 1 and 20 manually.
step 1 Address the formula and input values.
Formula: Average = Total Sum of Numbers / Total Count of Numbers
Input values:
The composite numbers between 1 and 20 are
4, 6, 8, 9, . . . . , 16, 18, 20
Total Count of Numbers = 11

step 2 Find the sum of composite numbers between 1 and 20.
sum = 4 + 6 + 8 + . . . . + 18 + 20
= 132

step 3 Divide the sum by 11
Average = 132/11
= 12

12 is an average of composite numbers between 1 and 20.

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