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11 June, 19:12

This list shows how many hours twenty batteries lasted when they ran continually in a flashlight. 78 31 47 51 16 58 60 10 30 40 46 63 65 10 93 22 13 47 64 93 What is the mean, median, and mode of the battery life data?

a. mean: 47 median: 46.85 mode: 10, 47, 93

c. mean: 46.85 median: 47 mode: none

b. mean: 46.85 median: 47 mode: 10, 47, 93

d. mean: 47 median: 46.85 mode: none

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  1. 11 June, 20:21
    0
    Mean:

    78 + 31 + 47 + 51 + 16 + 58 + 60 + 10 + 30 + 40 + 46 + 63 + 65 + 10 + 93 + 22 + 13 + 47 + 64 + 93 = 937

    937 : 20 = 46.85

    Median:

    10, 10, 13, 16, 22, 30, 31, 40, 46, 47, 47, 51, 58, 60, 63, 64, 65, 78, 93, 93

    • middle of the sequence ∧∧

    Mode:

    Number (s) that occur the most: 10, 47, and 93

    Therefore, the answer is: b. mean: 46.85 median: 47 mode: 10, 47, 93
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