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24 May, 13:57

Twelve secretaries were given a typing test, and the times (in minutes) to completed it were as follows: 8, 12, 15, 9, 6, 8, 10, 9, 8, 6, 7, 8 find the mean. round to one decimal place (example: 3.2)

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  1. 24 May, 14:02
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    8.8 should be correct
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