An Urn Contains Two Red R Balls Numbered 1 and 2

question 148

Multiple Choice

An urn contains two red R balls numbered 1 and 2, five white W balls numbered 3, 4, 5, 6 and 7, and three black B balls numbered 8, 9 and 10. A ball is drawn from the urn. What is the probability that it is red or odd-numbered O? ​

• A) Pr(R or
• O) =
• B) Pr(R or
• O) =
• C) Pr(R or
• O) =
• D) Pr(R or
• O) =
• E) Pr(R or
• O) =

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