Find the mean absolute deviation of the number of points scored. Round to the nearest hundredth if necessary. 12 25 16 20

Question

Find the mean absolute deviation of the number of points scored. Round to the nearest hundredth if necessary.

12 25 16 20

31 16 19 22

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Gianna 4 weeks 2021-09-19T04:29:33+00:00 1 Answer 0

Answers ( )

    0
    2021-09-19T04:30:36+00:00

    Answer:

    Mean Absolute deviation = 4.406

    Step-by-step explanation:

    First start by calculating the mean

    Mean = \frac{12 + 25 + 16 + 20 + 31 + 16 + 19 + 22}{8} = 20.125

    Find the distance of each value from the mean

    12 – 20.125 = -8.125

    25 – 20.125 = 4.875

    16 – 20.125 =  -4.125

    20 – 20.125 = -0.125

    31 –  20.125 = 10.875

    16 – 20.125 = -4.125

    19 – 20.125 = -1.125

    22 – 20.125 = 1.875

    (Exclude the minus signs before adding to get the mean absolute deviation)

    Find the mean of the distances

    Mean  absolute Deviation = \frac{8.125+4.875+4.125+0.125+10.875+4.125+1.125+1.875}{8}

                                                  = 4.40626 to the nearest hundredth

                                                 ≅4.406

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45:7+7-4:2-5:5*4+35:2 =? ( )