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THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

Question 130

Multiple Choice

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Let the random variable X follow a normal distribution with a mean of 61.7 and a standard deviation of 5.2.
-What proportion of the total area under the normal curve is within ± two standard deviations of the mean?


A) About 50%
B) About 68%
C) About 95%
D) About 99.7%

Correct Answer:

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