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Question: the following data represents the ages of 20 defence force...

Question details

The following data represents the ages of 20 defence force recruits:

17 17 19 19 19 20 20 20 21 22 22 23 25 25 26 26 27 28 28 29

What is the:

a) 7th decile?                                b) 90th percentile?

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