11) An unprepared student makes random quesses for the ten true-false questions

Question

11) An unprepared student makes random quesses for the ten true-false questions on a quiz. Find the probability that there is at least one correct answer. 1,023 1,024 A) B) D) 10 1,024 af. Lcasf one i5 cores). 1-P(none is Correct) P= 1/2 , n:lo pC ad Least one sed 10.05621024 = 3.0 olve the problem. A state lottery involves the random selection of six different numbers between 1 and 49. If you select one six-number combination, what is the probability that it will be the winning combination? 13) A musician plans to perform 12 selections. In how many ways can she arrange the musical selections? nombto af arrangement): 12-Y1q0o/ 600

Explanation / Answer

12) total number of ways to select 6 numbers = 49C6 = 49! / (6! * (49-6)!) = 13983816

P(winning combination) = 1 / 13983816

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