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Phrases Previous Year Questions (PYQs)
Phrases Probability Distribution PYQ
Phrases PYQ
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Phrases Previous Year PYQPhrases NIMCET 2017 PYQ
The mean and variance of a random variable X having binomial distribution are 4 and 2 respectively. The P(X = 1) is
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Phrases Previous Year PYQPhrases NIMCET 2017 PYQ
Solution
np = 4
npq = 2
q = 1/2, p = 1/2, n = 8
p(X = 1) = 8C1 (1/2)(1/2)7
Phrases PYQ
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Phrases Previous Year PYQPhrases NIMCET 2017 PYQ
If 
is the mean of distribution of x, then usual notation 
is
is the mean of distribution of x, then usual notation isGo to Discussion
Phrases Previous Year PYQPhrases NIMCET 2017 PYQ
Solution
Mean Deviation from mean is Zero.Phrases
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