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26 December, 18:11

The weekly salaries (in dollars) for 7 employees of a small business are given below. (Note that these are already ordered from least to greatest.) 522, 718, 818, 827, 847, 905, 984 Suppose that the $ 522 salary changes to $683.

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  1. 26 December, 21:38
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    (a) What happens to the median?

    It stays the same ⇒ $827

    (b) What happens to the mean?

    It increases by $23

    Step-by-step explanation:

    $522, $718, $818, $827, $847, $905, $984

    median = the median is the number in the middle = $827

    mean = ($522 + $718 + $818 + $827 + $847 + $905 + $984) / 7 = $803

    $683, $718, $818, $827, $847, $905, $984

    median = the median is the number in the middle = $827

    mean = ($683 + $718 + $818 + $827 + $847 + $905 + $984) / 7 = $826

    the mean is the average salary, since the salary of one of the employees increases, the average salary will also increase.
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