General Studies · Random Variables
For a discrete random variable X with probability density function f(x) = (x - 3)25 for x = 3, 4, 5, the variance of X is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
Share:
- 1425✓
- 245
- 325
- 4225
Correct answer
425
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
👥
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Online Test Series
Start Free Mock Test →Preparing for General Studies?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Chapter Practice
Practice Random Variables MCQs →Want more practice questions on Random Variables?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in General Studies · Random Variables