Question 366804: Hello to all tutors,
glad I found your site. I have checked approx 300 pages but cannot find a question similar to mine.
My professor requires us to use TI 83Plus calculators to do your work. I have gone over my notes several times but cant find anything on solving a problem like this.
There are multiple choice answers of: (a).2734, (b).2266,(c).7734, (d).2289
here is the question: the heights of female basketball players produce normal distribution, with a mean of 68 inches and standard deviation of 2 inches. what is the probability of randomly selected female player is more than 66.5 inches?
if you could please let me know what Tales or keys are used no the calculator to arrive at the answer if at all possible.
Thank you very much for your help
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! the heights of female basketball players produce normal distribution, with a mean of 68 inches and standard deviation of 2 inches. what is the probability of randomly selected female player is more than 66.5 inches?
if you could please let me know what Tales or keys are used no the calculator to arrive at the answer if at all possible.
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z(66.5) = (66.5-68)/2 = -0.75
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P(x > 66.5) = P(z > -0.75) = normalcdf(-0.75,100) = 0.7734
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Calculator talk.
To get P(z > -0.75)
2nd/DIST
#2 to get normalcdf(
Enter -0.75,100
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That gives you the area under the normal curve
from 0.75 standard deviations to the left of
the mean or zero to 100 standard deviations to
the right of the mean of zero.
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ENTER
You should see the following on your screen: .773373
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Cheers,
Stan H.
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