Find the probability

timer Asked: Jun 20th, 2015
account_balance_wallet $5

Question description

  1. While still half asleep, you randomly select a black sock from your drawer. After you remove that sock, the drawer contains two white socks and five more black socks. Without replacement you continue to randomly select one sock at a time from your drawer until another black sock is selected. Draw a probability tree diagram to answer the question. Find the probability that exactly three draws are needed to get another black sock.






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New York University

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