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July 2, 2015

Homework Help: Probability and statistics

Posted by Arun on Friday, March 2, 2012 at 3:26am.

10. The mean of the number of tosses on which a prime number occurs when a balanced dice is tossed 5 times is equal to

Choose one answer
a. 5/3
b. 3
c. 5/2
d. 2

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