Max has a bag of plain and cat’s eye marbles. There are 30 plain marbles and 7 cat’s eyes. He picks one marble and sets it aside
. Then he picks another.
What is the probability that he picked 2 cat’s eye marbles?
1 answer:
Answer:
0.19
Step-by-step explanation:
To compute the probability that Max picked cat's eye marble in second chance, their are two ways that is:
- He picked plain marble first time then he picked cat's eye marble in second time.
- He picked cat's eye marble first time also.
Their are two type of marbles: Plain Marble (P) and Cat's eye Marble (C)
∴ Probability that Max picked cat's eye marble in second chance = P( P then C) + P(C then C)
⇒
= 0.19
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