4. Probability, Random Variables, and Probability Distributions
Combining Random Events — Quiz
Test your understanding of combining random events with 5 practice questions.
Practice Questions
Question 1
Two events are combined with the word "or." What is the general meaning of $P(A \text{ or } B)$?
Question 2
If two events cannot happen at the same time, what is true about their overlap?
Question 3
A standard six-sided die is rolled once. What is the probability of getting an even number or a number greater than $4$?
Question 4
A class has $12$ students who play soccer, $9$ who play basketball, and $4$ who play both. What is the probability that a randomly chosen student plays soccer or basketball if there are $20$ students total?
Question 5
If $P(A) = 0.40$, $P(B) = 0.35$, and $P(A \text{ and } B) = 0.10$, what is $P(A \text{ or } B)$?