Production and Industrial Engineering
GATE PI concept:random-variables PYQs
Build your understanding with focused practice from past exam papers.
How to practice concept:random-variables
Attempt a question, record the concept and assumptions, then check the available answer. Rework mistakes after revising the relevant concepts. Topic tags can overlap; review the question context.
Questions 1–4 of 4. Imported answers require independent review unless marked reviewed.
Question 31
Open questionPINAT1 markNeeds review
If
is a continuous random variable with the probability density function
, then the value of
is ________ . (Answer in integer)Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 37
Open questionPINAT2 marksNeeds review
The probability mass function
of a discrete random variable X is given by
, where x = 1, 2, ···, ∞. The expected value of X is _________. [in integer]Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 5
Open questionPIMCQ1 markNeeds review
If
is a random variable with the expected value of 5 and the variance of 1, then the expected value of
isYour answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 36
Open questionPINAT2 marksNeeds review
If the probability density function of a random variable
is given by
the value of
is __________.Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer