SOLUTION: 8) Find each of the following probabilities for a normal distribution. a) p(z > -1.00) b) p(z> -0.80) c) p(z < 0.25) d) p(z < 1.25) a)p(z > -1.00) = 0.5 � P(0

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Question 405115: 8) Find each of the following probabilities for a normal distribution.
a) p(z > -1.00) b) p(z> -0.80) c) p(z < 0.25) d) p(z < 1.25)
a)p(z > -1.00) = 0.5 � P(0 < Z < -1.00) = 0.5 - -

Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website!
8) Find each of the following probabilities for a normal distribution.
a) p(z > -1.00)
b) p(z> -0.80)
c) p(z < 0.25)
d) p(z < 1.25)
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For each of these you should shade the area of the
standard normal curve you are finding.
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a)p(z > -1.00) = 0.5 + P(-1 < Z < 0) = 0.5 - 0.341345
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b)P(z > -0.80) = P(-0.8 < z < 0)+0.5 = 0.7881
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c)P(z < 0.25) = 0.5 + P(0 < z < 0.25) = 0.5987
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d)P(z < 1.35) = ?
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You can do these using a TI-83 or better calculator
or using a z-chart, which can be found online.
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Cheers,
Stan H.

SOLUTION: 8) Find each of the following probabilities for a normal distribution. a) p(z > -1.00) b) p(z> -0.80) c) p(z < 0.25) d) p(z < 1.25) a)p(z > -1.00) = 0.5 � P(0 < Z <