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vera_ewing

  • one year ago

Please explain how to use the mean and standard deviation of a normal distribution to determine the top 5% of the population.

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  1. dan815
    • one year ago
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    do you know how to read off the Z tables

  2. dan815
    • one year ago
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    you have to find the Z score for the 95% tile

  3. anonymous
    • one year ago
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    mean=all numbers added together divide total amount of numbers

  4. anonymous
    • one year ago
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    Statistics, correct? You need to use your graphing calculator and do this: finding z-score, you use invnorm (under distr button... on my calc, the TI-84 plus, it is option number 3.. it may be different for you though) so then you do this 2nd, VARS, invnorm and enter 0.95 you should get a graph of a sort :) hope that helps somewhat! it's a bit odd explaining stats via writing haha it's tricky but if you study the keystrokes, it will make more sense:)

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