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Questions › JNU › JNU SIS 2021 › Q59
0 marksStatistics › Random variables and standard distributions › Random variables, PMFs, PDFs and CDFsModerateabout 2 min

JNU SIS 2021 Question 59: Random variables and standard distributions

Let X be a continuous random variable with probability density function as given below: f(x)={kx; 0≤x≤50; Otherwisef(x) = \begin{cases} kx & ;\ 0 \le x \le 5 \\ 0 & ;\ Otherwise \end{cases}f(x)={kx0​; 0≤x≤5; Otherwise​ Then what is the value of the following Pr⁡{1≤X≤3}\Pr\{1 \le X \le 3\}Pr{1≤X≤3}?

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Let X be a continuous random variable with probability density function as given below: f(x) = { kx; 0 ≤ x ≤ 5; 0; Otherwise } Then what is the value of the following Pr {1 ≤ X ≤ 3}? (A) 8/25 (B) 9/25 (C) 10/25 (D) 11/25

Also written as: Let X be a continuous random variable with probability density function as given below: f(x) = { kx; 0 <= x <= 5; 0; Otherwise } Then what is the value of the following Pr {1 <= X <= 3}?

Random variables and standard distributions has come up 173 times in 7 exams since 2005.

What this question tests

This question is on Random variables, PMFs, PDFs and CDFs, part of Random variables and standard distributions in Statistics.

Describing a random variable by its mass, density or distribution function.

TestStop has 33 past-paper questions on this subtopic.

Practise Random variables and standard distributionsMore on Random variables, PMFs, PDFs and CDFs

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Question from the JNU SIS 2021 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.