SOLUTION: There are 3 white balls and 5 red balls in a plastic bag. What is the probability of choosing two red balls, one after the other?
I know that event A and B are dependant events.
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-> SOLUTION: There are 3 white balls and 5 red balls in a plastic bag. What is the probability of choosing two red balls, one after the other?
I know that event A and B are dependant events.
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Question 1157068: There are 3 white balls and 5 red balls in a plastic bag. What is the probability of choosing two red balls, one after the other?
I know that event A and B are dependant events. Answer by ikleyn(52837) (Show Source):
Listen to me attentively.
The probability that the first ball is red is = .
If the first ball was red, then the second time you select from 7 balls, of which only 4 are red.
Therefore, the probability to get the second ball red is .
The probability to get both, the first and the second balls red is therefore
P = . ANSWER
