4. Probability, Random Variables, and Probability Distributions

Conditional Probability And Independence — Quiz

Test your understanding of conditional probability and independence with 5 practice questions.

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Practice Questions

Question 1

What does $P(A\mid B)$ mean?

Question 2

If $P(A\mid B)=P(A)$, what does this tell you about events $A$ and $B$?

Question 3

Two cards are drawn from a standard deck without replacement. What is the probability that the second card is an ace given that the first card is an ace?

Question 4

Which statement is true for independent events $A$ and $B$?

Question 5

A bag contains $5$ red balls and $3$ blue balls. One ball is drawn, not replaced, and then a second ball is drawn. What is $P(\text{second is blue} \mid \text{first is red})$?