TWELVE PRACTICE PROBLEMS--PROBABILITY

So the probability of at least one person standing up is 0.6321. 6. Probability Problem--Card-Matching. This is the same problem as No. 5. P(each pair not matching) = 51/52 = 0.9808. By the extended multiplicative rule, the probability of no pairs matching is 0.9808 to the 52 power, or 0.3643. So the probability of at least one match is 0.6357. 7. ................
................