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yashar806

  • one year ago

help with statisitcs

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  1. yashar806
    • one year ago
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  2. kirbykirby
    • one year ago
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    A. It is related to the cdf of the normal distribution. There's some stuff here http://en.wikipedia.org/wiki/68-95-99.7_rule

  3. yashar806
    • one year ago
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    can you help on this one?

  4. kropot72
    • one year ago
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    Go to the following link and select "normal.pdf". http://www.math.bgu.ac.il/~ngur/Teaching/probability/ Find the cumulative probabilities for z = 1.5 and z = -1.5. Find the value of\[z _{(1.5)}-z _{(-1.5)}=?\]

  5. kropot72
    • one year ago
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    @yashar806 What was the result of your calculation?

  6. yashar806
    • one year ago
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    0.2652

  7. kropot72
    • one year ago
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    What values did you get for z(1.5) and z(-1.5) ?

  8. yashar806
    • one year ago
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    0.9332

  9. yashar806
    • one year ago
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    0.0668

  10. yashar806
    • one year ago
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    sorry, i calculate them wrong

  11. yashar806
    • one year ago
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    lol

  12. yashar806
    • one year ago
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    i got the answer thanks

  13. kropot72
    • one year ago
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    You're welcome :)

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