An urn contains 5 green and 2 red balls. One ball is drawn at random and its colour is recorded. This selected ball is then replaced in the urn and 3 more balls of the same colour are added to the urn. Next, another ball is drawn from the urn and its colour is recorded.

A) Find a suitable sample space for that random experiment and assign probabilities to sample points.

B) Find the probability distribution table of the random variable X representing the number of red balls among the two selected ones. Draw the bar chart of X.

C) Draw the cumulative distribution function F(x).

what are the answers for b and c?

  • $\begingroup$ The answers to B), C) follow from A). $\endgroup$ – copper.hat Nov 18 '15 at 6:08

Sample space $\Omega = \{GG,GR, RG,RR\}$.


enter image description here


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.