Type your answer in the blank and click Check Answer.

Question 7
What is the probability that a contestant guesses correctly on the second door, given that they answered incorrectly on the first door? Write your answer using probability notation.

Check Answer

Answer:
=
= ${\displaystyle \frac{\left(\frac{6}{27}\right)}{\left(\frac{2}{3}\right)}}$ = ${\displaystyle \frac{\left(\frac{2}{9}\right)}{\left(\frac{2}{3}\right)}}$ = ${\displaystyle \frac{1}{3}}$
Go to question 8.