In an experiment a person gets success \alpha times out of \beta trails. If the experiment consists of n trials, then the probability that he fails at least (n-1) times is

Correct Answer is : (β−α)n−1βn(nα+β−α)

{\alpha^{n-1}}/{\beta^{n}}(n \beta-n \alpha+\alpha)

{(\beta-\alpha)^{n-1}}/{\beta^{n}}(n \alpha+\beta-\alpha)

{\alpha^{n}}/{\beta^{n}}(n \alpha+\beta)

(\frac{\beta-\alpha}{\beta})^{n}(n \beta+n \alpha+1)

TS EAMCET 19-July-2022 Shift 1 Solved Paper

Section: Mathematics

Question : 40 of 160

Marks: +1, -0

In an experiment a person gets success α times out of β trails. If the experiment consists of n trials, then the probability that he fails at least (n−1) times is

‌
αn−1
βn
(nβ−nα+α)
‌
(β−α)n−1
βn
(nα+β−α)
‌
αn
βn
(nα+β)
(‌
β−α
β
)n(nβ+nα+1)

Validate

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