Please wait...
1800-212-7858 (Toll Free)
9:00am - 8:00pm IST all days
For Business Enquiry


Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this toll free number


Mon to Sat - 11 AM to 8 PM

A bag contains 2 red and 3 black balls . One ball is drawn and put back into the bag.This is done three times and everytime a red ball is drawn, it is counted as a success.Let 'X' denote the number of 'X' a random variable. Justify your answer

Asked by Topperlearning User 4th June 2014, 1:23 PM
Answered by Expert
An experiment is called random experiment if it satisfies the following two conditions:

(i) It has more than one possible outcome.

(ii) It is not possible to predict the outcome in advance.

Here X has two possible outcomes, a success and a failure. It is also not possible to predict the outcome when a ball is drawn, in advance.So X is a random variable.
Answered by Expert 4th June 2014, 3:23 PM
Rate this answer
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer /10

Your answer has been posted successfully!

Chat with us on WhatsApp