Some students did a test out of 10. These are the scores.
I think the average is about 8.
7 10 10 8 9 8 7 6 7
There are different ways to calculate the centre of the data. The middle value when the data is put in order. 6 7 7 7 8 8 9 10 10 This is called the median . The most common score was 7. This is called the mode . 6 7 7 7 8 8 9 10 10 The mean average is the arithmetic middle of the data. It is calculated by adding up all of the numbers and dividing by the total count. 6 + 7 + 7 + 7 + 8 + 8 + 9 + 10 + 10 _______________________________ 9 = 72 ___ 9 = 8 The mean average is 8.
When people talk about an average they usually mean the mean!
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01/12/2021 14:58
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