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PART 2 : RANDOM VARIABLE ANE DISCRETE PROBABILITY DISTRIBUTION — Statistics STD 12 Commerce — Question

Gujarat BoardEnglish MediumSTD 12 CommerceStatisticsPART 2 : RANDOM VARIABLE ANE DISCRETE PROBABILITY DISTRIBUTION1 Mark
Question
Write the probability function of binomial distribution $b\left(7, \frac{1}{4}\right)$.
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Answer

$p(x)={ }^7 C_x\left(\frac{1}{4}\right)^x\left(\frac{3}{4}\right)^{7-x}, x=0.1 \ldots .7$

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