Mathematics for IGCSE & O level - Probability (Section 1 - No. 42)
What is the probability of choosing a yellow ball on the second draw, given that the ball is not replaced?
Depends on the colour of the first ball chosen
Is always less than the probability of the first draw
Is 0
Is always the same as the probability of the first draw
解释
Because the first ball isn't replaced, the probability changes on the second draw based on the outcome of the first draw.