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Random Variables Questions

Practice 4 Random Variables questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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Practice by Exam:Mathematics(4)

About Random Variables — practice questions, PYQs & concepts

Random Variables is a frequently-tested topic on Mathematics. ExamTest.live currently lists 4 Random Variables questions spanning previous-year papers from 2026 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year — every answer key is free, no sign-up required.

Random Variables weight in competitive exams

Across our Random Variables question bank, the largest sources are Mathematics (4). Click any exam chip above to drill down to that exam-specific question set.

How to use this page

  • Start easy: 0 easy Random Variables questions are available — build fluency before moving up.
  • Target weak years: Use the year filter to focus on the most recent 2026 paper or older PYQs you have not attempted.
  • Time yourself: Every question shows the average solve time so you can benchmark your speed against other students.
  • Read every explanation: Even on questions you got right — the explanation often surfaces a faster approach you can reuse.

All Random Variables Questions(1–4 of 4)

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Q1mediummcqMathematicsMathematics Mock Test - 52026
0% accuracy
Let for . The value of constant such that satisfies the conditions of being a probability mass function (PMF) is:
Q2mediummcqMathematicsMathematics Mock Test - 52026
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A fair die is tossed thrice. If the probabilities of zero, one, two, and three successes are respectively, find the mean of the number of successes.
Q3mediummcqMathematicsMathematics Mock Test - 92026
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If and are random variables such that , and , , the values of such that will be:
Q4mediummcqMathematicsMathematics Mock Test - 32026
The mean of the numbers obtained on throwing a die having written on four faces, on three faces, on two faces and on one face is?

Frequently Asked Questions

How many Random Variables questions are on ExamTest.live?▼
We have 4 Random Variables questions spread across 1 pages, covering easy, medium, and hard difficulty levels with detailed explanations.
Are Random Variables MCQs free?▼
Yes. All Random Variables questions, answers, and explanations on ExamTest.live are completely free. No account or subscription required.
Which exams include Random Variables questions?▼
Random Variables questions are commonly asked in Mathematics. You can filter by exam using the links above.
How do I practice Random Variables questions effectively?▼
Start with easy questions to build confidence, then tackle medium and hard ones. Use the filter buttons to sort by difficulty. Reveal the answer only after attempting each question, and read the explanation thoroughly.