The Time to Complete the Construction of a Soapbox Derby

question 135

Multiple Choice

The time to complete the construction of a soapbox derby car is normally distributed with a mean of three hours and a standard deviation of one hour. Find the probability that it would take between 2.5 and 3.5 hours to construct a soapbox derby car.

• A) 0.3085
• B) 0.3830
• C) 0.6170
• D) 0.6915

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Definitions:

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