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The following shows the age of 20 children Age frequency 1 5 2 6 3 7 4 2 What is the meanagecorrect to 1 decimal

The following shows the age of 20 children

Age

frequency

1

5

2

6

3

7

4

2

What is the meanagecorrect to 1 decimal places?

What is the populationvarianceagecorrect to 1 decimal places?

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