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25 September, 10:49

A population consists of 500 elements. We want to draw a simple random sample of 50 elements from this population. On the first selection, the probability of an element being selected is

A. 0.100

B. 0.010

C, 0.001

D. 0.002

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Answers (1)
  1. 25 September, 11:06
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    D. 0.002

    Step-by-step explanation:

    Given;

    total number of sample, N = 500 elements

    50 elements are to be drawn from this sample.

    The probability of the first selection, out of the 50 elements to be drawn will be = 1 / total number of sample

    The probability of the first selection = 1 / 500

    The probability of the first selection = 0.002

    Therefore, on the first selection, the probability of an element being selected is 0.002

    The correct option is "D. 0.002"
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