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The following is the p.d.f. of a r.v. X. f(x) = {ЁЭСе8 for 0<ЁЭСе<40 otherwise. Find P(x > 2) - Mathematics and Statistics

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Question

The following is the p.d.f. of a r.v. X.

f(x) = `{(x/(8),  "for"  0 < x < 4),(0,  "otherwise."):}`

Find P(x > 2)

Sum
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Solution

P(X > 2) = `int_2^4 x/(8)`

= `(1)/(8) int_2^4 x  *  dx`

= `(1)/(16)[x^2]_2^4`

= `(1)/(16)[16 - 4]`

= `(12)/(16)`

= `(3)/(4)`

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Probability Distribution of a Continuous Random Variable
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Chapter 8: Probability Distributions - Exercise 8.2 [Page 144]

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Balbharati Mathematics and Statistics 2 (Commerce) [English] Standard 12 Maharashtra State Board
Chapter 8 Probability Distributions
Exercise 8.2 | Q 1.02 | Page 144
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