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11 August, 04:10

Use the standard normal table to find P (z ≥ 1.4). Round to the nearest percent.

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Answers (2)
  1. 11 August, 05:20
    0
    The more better answer would be 8%
  2. 11 August, 06:20
    0
    To use the standard table to evaluate P (z≥1.4) we proceed as follows:

    P (x≥1.4) = 1-P (z≤1.4)

    but from the z-tables:

    P (z≤1.4) = 0.9192

    hence:

    P (x≥1.4) = 1-0.9192

    simplifying we obtain:

    =0.0808
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