Question 534362: A normal distribution that has a mean of 100 and sd of 8. I have determined the z scores of x=18, 112, 98, 70, and 124. Now it is asking to determine the area with
p(x>108)
p(x<98)
p(92
p(84
p(x<84)
How to you calcute the answer to these. Please help
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A normal distribution that has a mean of 100 and sd of 8. I have determined the z scores of x=18, 112, 98, 70, and 124. Now it is asking to determine the area with
p(x>108)
z(108) = (108-100)/8 = 1
P(x > 108) = P(z > 1) = normalcdf(1,100) = 0.1587
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p(x<98)
z(98) = (98-100)/8 = -1/4
P(x < 98) = P(z < -1/4) = 0.4013
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p(x<84)
same procedure
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Cheers,
Stan H.
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