Two balls are picked at random from a jar that contains three red and five white balls. Find the probability of the following events.
a) Both balls are red.
b) Both balls are white.
The probability that both balls are red.
There are red and white balls of which balls are picked.
The probability of an event is,
Here, denotes the probability of event , is the favourable outcomes of , is the total outcomes.
The combination formula is where .
Since, there are red and white balls. So, there are total balls.
Let be the event that the balls are red
The probability that both balls are white.
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