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First of all rearrange the terms (numbers) in rank order.

Hence

3,4,6**,8**,8,9,9.

The MEDIAN is the ABSOLUTE middle number in the rank, which is the first '8'. Note , there are three terms to either side of this '8'.

The MODE is the number that appears most frequently (often) . Both '8' & '9' appear twice. So either '8' is the mode, or '9' is the mode. Neither number is incorrect. However, since '8' is also the median , it is probably the best to select '8'.

The MEAN (Casually the Average) is the sum of all the terms divided by the number of terms.

Hence

[3+4+6+8+8+9+9] / 7 =>

[47]/7 = 6.714....

N.B. In Maths. it is the 'MEAN' . Casually in everyday life it is referred to as the average. However, the word 'average' comes from Latin ' Avaria' , for 'loss ' or 'damage.

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lenpollock

Lvl 17
1w ago

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