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    probability of a value

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    A normal distribution has a mean of 50 and a standard deviation of 4.
    a) Compute the probability of a value between 44.0 and 55.0
    Show your work and answer here excel format
    b) Compute the probability of a value greater than 55.0
    Show your work and answer here excel format
    c) Compute the probability of a value between 52.0 and 55.0
    Show your work and answer here excel format

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    https://brainmass.com/economics/principles-of-mathematical-economics/probability-of-a-value-62972

    Solution Preview

    a) P(44<X<55) = P[(44-50)/4<z<(55-50)/4]
    =P[-1.5<z<1.25]
    =P[z<1.25] - P[z<-1.5]
    Look at the ...

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