Mean, Median, Mode

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Question 1

The fuel emissions (in g/km of CO2) of a sample of 7 diesel cars of similar type have been recorded as follows:

$\var{a2}, \var{a7}, \var{a1}, \var{a5}, \var{a3}, \var{a6}$ and $\var{a4}$ .

Calculate the mean, median and mode of these emissions.

$\text{mean}=\;\;$ interpreted as $\displaystyle{}$ Expected answer:interpreted as $\displaystyle{122.71}$ (correct to two decimal places)

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$\text{median}=\;\;$ Expected answer:

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$\text{mode}=\;\;$ Expected answer:

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Mean: Add up all the numbers and divide by the number of numbers.

Median: middle value

Mode: most common value

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