9
QuizMultiple Choice

Probability of Independent Events

Question 9 • EAP-Algebra Functions and Data Analysis B CR

Which is a pair of dependent events?

Answer
A
spinning a spinner one time and then spinning it a second time
B
flipping a quarter and then flipping a nickel
C
removing a marble from a bag, not putting it back, and then removing a second marble
D
rolling a number cube and then choosing one letter from the alphabet

Explanation

Events are dependent when the outcome of the first event changes the probabilities for the second. Removing a marble without putting it back changes the contents of the bag, so it can change the chance of drawing each color or type on the second draw. The other pairs involve separate random actions that do not affect one another.

AI-written and checked against the verified answer.

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