In KS3 Maths, when handling data, you'll be diving into analysing information. A big part of this is finding averages. Averages help find a typical value in a set of data, and there are three main types: mean, median, and mode.
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The three types of average can give very different results. The same data set might give a mean of 4.04, a median of 9, and a mode of 12. See the variation? Choosing the right method depends on your data, and it's a skill that's super handy in maths.
Test your knowledge with this quiz on averages – mean, mode, and median. Can you figure them out? Can you pick the right one for different situations? Read each of the ten questions carefully and think hard about your answers. Let's aim for an above-average score of 10-out-of-10! Good luck with your KS3 Maths adventure!
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You can find more about this topic by visiting BBC Bitesize - Averages
You might get 102 in one box and 98 in another, but the contents should always be about 100
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Remember, the mode is the most common
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(8 x 0.50) + (5 x 0.60) + (4 x 0.75) + (3 x 1)
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Modal amount = mode (most frequent)
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Both the 10th and 11th values are 60p
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Mean values will often be fractions rather than whole numbers
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Mean = total ÷ 20. £13.00 ÷ 20 = 0.65
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The mean is higher than the amount spent by most customers. 13 of them spent 60p or less
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1,000 x 3 = 3,000 minutes. Divide by 60 to convert to hours
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Total call time is (9 x 5) + 10 = 55 so mean is 55 ÷ 10 = 5.5
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