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The Time Required for a Citizen to Complete the 2010

Question 59

Multiple Choice

The time required for a citizen to complete the 2010 U.S. Census "long" form is normally distributed with a mean of 40 minutes and a standard deviation of 10 minutes. What proportion of the citizens will require less than one hour?


A) 0.4772
B) 0.9772
C) 0.9974
D) 0.9997

Correct Answer:

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