193,298 views
15 votes
15 votes
Maya is playing a trivia game with multiple choice questions. Each question has 2 22 correct answers among 5 55 answer choices. Maya has no idea what the answers to a certain question are, so she needs to choose two different answers at random. What is the probability that maya's first guess is correct and her second guess is incorrect?.

User Paul Fioravanti
by
3.1k points

1 Answer

22 votes
22 votes

Answer:

0.3 or 3/10

Explanation:

First guess:

chance it is right: 2/5

chance it is wrong: 3/5

Second guess, if first is right:

chance it is right: 1/4

chance it is wrong: 3/4

therefore we multipy 2/5 and 3/4 and get a simplified answer of 3/10

User Nithin Viswanathan
by
2.9k points
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