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Probability that the ball is numbered 1 = 1/4
Probability that the ball is numbered 4 = 1/4
Probability that the ball is numbered 1 or 4 = 1/4 + 1/4
= 2/4
= 1/2
b)
Probability that the bottle be orange = 5/12
Probability that the botthe be warm = 6/12 = 3/6 = 1/2
Probability that the bottle be orange flavor or warm = 5/12 + 6/12
= 11/12