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Thread: Question about Standard Normal Distribution (Finding probability)

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    Question Question about Standard Normal Distribution (Finding probability)




    Suppose Z is a random variable having the standard normal distribution.

    1)Find the probability that Z is between 0 and (1.08 + R/10)

    2)P(–w < Z < w) = 0.8942 - R/50, Find the values of w


    My Answer:
    P(0<Z<1.08+R/10)
    =P(Z<(1.08-0)/1)
    =P(Z<1.08)
    =0.5+0.3599
    =0.8599

    is this correct?
    Last edited by YHY516; 11-21-2013 at 11:44 PM. Reason: putting suggested answer

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    Re: Question about Standard Normal Distribution (Finding probability)


    1) what is R?

    2) your answer cannot be correct (no matter what the value of R is)

    Quote Originally Posted by YHY516 View Post
    Suppose Z is a random variable having the standard normal distribution.

    1)Find the probability that Z is between 0 and (1.08 + R/10)

    2)P(w < Z < w) = 0.8942 - R/50, Find the values of w


    My Answer:
    P(0<Z<1.08+R/10)
    =P(Z<(1.08-0)/1)
    =P(Z<1.08)
    =0.5+0.3599
    =0.8599

    is this correct?
    Dr. Zoidberg: Fry, it's been years since medical school, so remind me. Disemboweling in your species, fatal or non-fatal?

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