Question

Identifying Independent Events
Which are independent events? Check all that apply.
rolling a number cube twice
picking 2 marbles from a bag, without replacement
choosing a meal/drink combination
flipping a coin four times
picking 2 cards from a deck, without replacement

Answer 1

Independent:
- rolling a number cube twice (each roll doesn't affect the other),
- choosing a meal/drink combination (meal choice doesn't change drink probabilities),
- flipping a coin four times (each flip is independent).

Not independent:
- picking 2 marbles from a bag, without replacement (first pick changes the composition),
- picking 2 cards from a deck, without replacement (first card changes the deck).