SOLUTION: Given that a binomial variable has a mean of 12 and a standard deviation of {{{ sqrt( 8 ) }}}, find p and n.
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-> SOLUTION: Given that a binomial variable has a mean of 12 and a standard deviation of {{{ sqrt( 8 ) }}}, find p and n.
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You can put this solution on YOUR website! Given that a binomial variable has a mean of 12 and a standard deviation of , find p and n.
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np = 12
sqrt(npq) = sqrt(8)
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np = 12
npq = 8
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Divide to get:
q = 2/3
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Then p = 1/3:
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np = 12
n(1/3) = 12
N = 36
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Cheers,
Stan H.
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