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3 December, 21:12

The heights of apricot trees in an orchard are approximated by a normal distribution model with a mean of 18 feet and a standard deviation of 1 feet. What is the probability that the height of a tree is between 16 and 20 feet

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  1. 3 December, 21:34
    0
    0.9544

    Step-by-step explanation:

    We are given that mean=18 and standard deviation=1 and we have to find P (16
    P (16
    z1 = (x1-mean) / standard deviation

    z1 = (16-18) / 1=-2

    z2 = (x2-mean) / standard deviation

    z2 = (20-18) / 1=2

    P (16
    P (16
    P (16
    The probability that the height of a tree is between 16 and 20 feet is 95.44%
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