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find the probability p(-1.14 < z < 1.01)
using the normal standard distribution

  • statistics -

    Look up a standard normal distribution table, or use the following link:

    The left-tail probability
    P1=P(< -1.14σ) = 0.1271
    and the left-tail probability
    P2=P(< +1.01σ) = 0.8438

    P(-1.14σ < z < 1.01σ)=P2-P1

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