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Binomial Distribution — Maths STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceMathsBinomial Distribution1 Mark
MCQ
Mark the correct alternative in the following question:
The probability that a person is not a swimmer is $0.3$. The probability that out of $5$ persons $4$ are swimmers is:
  • ✓
    $\text{ }^5\text{C}_4(0.7)^4(0.3)$
  • B
    $\text{ }^5\text{C}_1(0.7)(0.3)^4$
  • C
    $\text{ }^5\text{C}_4(0.7)(0.3)^4$
  • D
    $(0.7)^4(0.3)$
✓

Answer

Correct option: A.
$\text{ }^5\text{C}_4(0.7)^4(0.3)$
$\text{ }^5\text{C}_4(0.7)^4(0.3)$

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