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keyone keyone
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7 years ago
Which of the following statements about probability of occurrence is correct?
A) The range of values found by adding and subtracting one standard deviation to the mean of the random variable accounts for 68.26 percent of the area under the curve.
B) The range of values found by adding and subtracting two standard deviations to the mean of the random variable accounts for 68.26 percent of the area under the curve.
C) The range of values found by adding and subtracting two standard deviations to the mean of the random variable accounts for 99.74 percent of the area under the curve.
D) All of the above are incorrect.
Textbook 
Introduction to Risk Management and Insurance

Introduction to Risk Management and Insurance


Edition: 10th
Authors:
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giddugiddu
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7 years ago
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keyone Author
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6 years ago
Thanks
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