Mathematics · Probability Distribution
The probability mass function of a random variable X is given by P(X = x) = (0.6)x(0.4)1−x for x = 0, 1. Find the variance of X.
- 10.240✓
- 20.244
- 30.124
- 40.600
Correct answer
0.240
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!
Preparing for Mathematics?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Want more practice questions on Probability Distribution?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Mathematics · Probability Distribution