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A person has 5 different-colored balls: red, blue, green, yellow, and orange. He places them in a bag, then randomly draws out two balls. What is the probability that he will draw exactly one blue ball?
A person has 5 different-colored balls: red, blue, green, yellow, and orange. He places them in a bag, then randomly draws out two balls. What is the probability that he will draw exactly one blue ball?
Read lessIn a box of apples, there are 6 red apples, 4 green apples, and 2 yellow apples. If a person randomly picks 2 apples from the box, what is the probability that at least one of them is yellow?
In a box of apples, there are 6 red apples, 4 green apples, and 2 yellow apples. If a person randomly picks 2 apples from the box, what is the probability that at least one of them is yellow?
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sample space : 12C2 = 66 Let E be the event of selection of atleast one apple is yellow Cases for E : RY + GY + YY = 6C1*2C1 + 4C1*2C1 +2C1*2C1 = 24 P(E) = 24/66 = 4/11 .
sample space : 12C2 = 66
Let E be the event of selection of atleast one apple is yellow
Cases for E : RY + GY + YY = 6C1*2C1 + 4C1*2C1 +2C1*2C1 = 24
P(E) = 24/66 = 4/11 .
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SS = 5C2 = 10 CASES = RB + GB+ YB+ OB = 4 P(E) =2/5
SS = 5C2 = 10
CASES = RB + GB+ YB+ OB = 4
P(E) =2/5
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