Question 3 • Mathematics II
Two events are independent when the first event does not change the probability of the second. Each coin flip in A and each number-cube roll in B is a new random trial, so the first result does not affect the next. In D, replacing the card restores the deck before the second draw, so its probabilities stay the same. In C and E, the first item is not replaced, which changes what remains and affects the second draw.
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