Conditional Probability

Probability theory and statistics

Conditional Probability

Postby Guest » Tue May 01, 2018 8:40 am

I have a question, im asked to solve the following Problem:

An urn contains 6 red balls and 3 blue balls. One ball is selected at random and is replaced by a ball of the other color.
A second ball is then chosen.
What is the conditional probability that the first ball selected is red, given that the second ball was red?

I know that with conditional probabilities the sequential order does not matter in a sense that it does not matter that the second draw has not happened befor the first draw.

But i have no idea how to solve it.

Many thanks for your help

Return to Probabilities and Statistics

Who is online

Users browsing this forum: No registered users and 1 guest