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    The number of cars that travel through an intersection between noon and 1pm is measured for 30 consecutive days. The results of the 30 observations are: 61,62,63,63,64,64,66,66,67,68,68,68,68,69,69,69,69,70,70,70,70,71,71,72,73,74,74,75,76,and 79

    Find: a.) Range
    b.) Standard Deviation
    c.) The population standard deviation
    d.) Variances for sample and population

    © BrainMass Inc. brainmass.com June 3, 2020, 5:19 pm ad1c9bdddf
    https://brainmass.com/statistics/dispersion-and-spread-of-data/21340

    Solution Preview

    We use Excel and get the following
    <br>
    <br>Mean 68.96666667
    <br>Standard Error 0.782691104
    <br>Median 69
    <br>Mode 68
    <br>Standard Deviation 4.286975731
    <br>Sample ...

    Solution Summary

    The number of cars that travel through an intersection between noon and 1pm is measured for 30 consecutive days. The results of the 30 observations are: 61,62,63,63,64,64,66,66,67,68,68,68,68,69,69,69,69,70,70,70,70,71,71,72,73,74,74,75,76,and 79

    Find: a.) Range
    b.) Standard Deviation
    c.) The population standard deviation
    d.) Variances for sample and population

    $2.19

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