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1 June, 01:06

What are the mean, median, mode, and range of the data set given the altitude of lakes in feet: - 11, - 28, - 17, - 25, - 28, - 39, - 6, and - 46?

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  1. 1 June, 03:27
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    Mean=-21.5

    Median=-26.5

    Mode=-28

    Range = - 6 to-46

    Step-by-step explanation:

    Arranging the numbers given either in ascending or descending order. In this case, I used descending order as follows

    -6

    -11

    -17

    -25

    -28

    -28

    -39

    -46

    Mode is the number that occurs more than others. In this case, only - 28 appears twice hence it is the mode

    The mean is given by adding all the numbers and dividing by the frequency.

    The sum of numbers will be - 6+-11+-17+-25+-28+-28+-39+-46=-172

    Mean=-172/8=-21.5

    The median is the number that appears in the middle after arranging the numbers in descending order as above. In this case, two numbers appear in the middle, that is - 25 and - 28 hence median - 25+-28/2=-26.5

    The range of numbers id from - 6 to-46 as arranged above
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