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Anonymous asked in Science & MathematicsMathematics · 2 months ago

Statistics I got that .4890 is closest to the table value .4880 which has a Z score of .03?



be a continuous random variable that follows a normal distribution with a mean of standard deviation is 28 

Update 2:

Sorry Guys can't delete but figured out the answer mean is 375 and Standard deviation is 28

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3 Answers

  • Alan
    Lv 7
    2 months ago
    Favorite Answer

    see image, Yahoo Hid it 

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  • 2 months ago

    My table has a table value of 0.4890; z = 2.29

    0.5000 - 0.4890 = 0.1100, closest to 0.0120 which has z = 0.03. Is that is?

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  • 2 months ago

    Your teacher is a moron.  This question does not contain enough information to have a unique answer.  If we SUPPOSE that 375 is the mean value in this example (which is not stated), then we are looking for a Z score of 2.29 (not 0.03).  No way in the world to find "x" without knowing the standard deviation of the distribution.

    Or maybe you didn't post the introductory paragraph of the question...?

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