SOLUTION: The amount of time students spend on this question follows an approximately Uniform distribution between 20 seconds and 90 seconds. What proportion of students spend more than one
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Question 1078043: The amount of time students spend on this question follows an approximately Uniform distribution between 20 seconds and 90 seconds. What proportion of students spend more than one minute (60 seconds) on this question?
A. 0.3333
B. 0.4285
C. 0.8571
D. 0.5174
E. 0.6667
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
The whole distribution is 70 units and 30 are more than 60 seconds.
3/7=0.428571
B.
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