An urn contains five red balls and six blue balls. Four balls are drawn at random, without replacement. (a) What is the probability that all four balls are red? (Round your answer to four decimal places.) 0.0152 (b) What is the probability that two of the balls are red and two are blue? (Round your answer to four decimal places.) .07575
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- Probability of drawing the first red ball: 5/11 - Probability of drawing the second red ball: 4/10 - Probability of drawing the third red ball: 3/9 - Probability of drawing the fourth red ball: 2/8 - Multiply all probabilities: (5/11) * (4/10) * (3/9) * (2/8) = Show more…
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