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Let the random variable X is defined as ...

Let the random variable X is defined as time (in minutes) that elapses between the bell and end of the lecture in case of collagen professor whrer pdf is defined as `f(x)={{:(kx^2","0lexlt2),(0", ""elsewhere"):}`
find the probability that lecture continue for atleast 90s beyond the bell

A

`(37)/(192)`

B

`(37)/(32)`

C

`(37)/(24)`

D

`(37)/(64)`

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The correct Answer is:
D
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  2. Let X = time (in minutes ) that lapses between the bell and the e...

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  11. The p.d.f. of a continuous r.v. X is f(x)={{:((x)/(8)","0ltxlt4),(0", ...

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  12. The p.d.f. of a continuous r.v. X is f(x)={{:((x)/(8)","0ltxlt4),(0", ...

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