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Math Help - empirical cdf

  1. #1
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    Question empirical cdf

    Problem 1 In an experiment, the life times of ball bearings were recorded (million revolutions).
    Consider the following 22 observations (sorted in order):
    17.88, 28.92, 33.00, 41.52, 42.12, 45.60, 48.48, 51.84, 51.96, 54.12,
    55.56, 67.80, 68.64, 68.88, 84.12, 93.12, 98.64, 105.12, 105.84, 127.92,
    128.04, 173.40.


    4. Sketch the empirical cumulative distribution function.

    According to my notes the solution is that the empirical cdf can be obtained by plotting a piecewise constant curve that
    jumps 1/22 at each of 22 data points but I don't understand where this has come from? Could someone explain it for me please!
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  2. #2
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    Re: empirical cdf

    Wait I just realised what it is and how simple it actually is. If I knew how to delete a post I would delete this haha
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