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Bring out the fallacy if any in the...

Bring out the fallacy if any in the following statement :
The mean of a binomial distribution is 6 and its variance is 9.

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The correct Answer is:
The probability of getting a failuare (i.e., q) cannot be greater than 1.
np=6 and npq `=9 rArr q=(npq)/(np)=(9)/(6) =(3)/(2)`
But q cannot ge greater than 1.
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RS AGGARWAL-PROBABILITY DISTRIBUTION-Exercise 32
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