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15 August, 15:40

A normal distribution has mean μ and standard deviation σ. An x-value is randomly selected from the distribution. Find P (μ - 3σ ≤ x ≤ μ)

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  1. 15 August, 16:06
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    49.85%

    Step-by-step explanation:

    P (μ - 3σ ≤ x ≤ μ)

    = ½ P (μ - 3σ ≤ x ≤ μ + 3σ)

    = ½ (99.7%)

    = 49.85%
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