Question 439378: Q: if the random variable z is the standard normal score, is it true that P(z <-6) could easily be approximated without referring to a table? Why or why not?
I don't even know where to begin, please help. Thank you.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Q: if the random variable z is the standard normal score, is it true that P(z <-6) could easily be approximated without referring to a table? Why or why not?
I don't even know where to begin, please help.
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It's asking you what proportion of a normally distributed
population is less than 6 standard deviations below the
mean of the population.
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The answer is "almost none".
My TI calculator gives the following answer: 0.0000000099012..
of the population.
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Cheers,
Stan H.
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