1.suppose that E and F are independent events, P(E) = 0.7 and P(F) = 0.1. Find P(E or F).

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2.You roll a die 9 times. What is the probability of rolling at least one 6? Round your answer to 3 digits after the decimal point.

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3.There are two containers. One contains the letters ALLOSAURUS the other the letters CEPHALOPOD. You choose a container by coin toss and then randomly select a letter. Find the probability of selecting the letter O.

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4.Suppose a certain drug test is 86% sensitive, that is, the test will correctly identify a drug user as testing positive 86% of the time, and 86% specific, that is, the test will correctly identify a non-user as testing negative 86% of the time.

Suppose a corporation decides to test its employees for drug use, and that only 0.2% of the employees actually use the drug. What is the probability that, given a positive drug test, an employee is actually a drug user? Round your answer to 3 digits after the decimal point.

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1 The rule is that P E or F PE PF P E and F ... View the full answer