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    Probability

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    Please specify the terms you use (if necessary) and explain each step of your solutions. Thank you very much.

    2. Twenty workers are to be assigned to 20 different jobs, one to each job. How many different assignments are possible?

    3. A student is to answer 7 out of 10 questions in an examination. How many choices has she? How many if she must answer at least 3 of the first 5 questions?

    4. A dance class consists of 22 students, 10 women and 12 men. If 5 men and 5 women are to be chosen and then paired off, how many results are possible?

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    2. Twenty workers are to be assigned to 20 different jobs, one to each job. How many different assignments are possible?

    This is a question of permutation:
    (20)P(20) = 20! = 20*19*18*...*2*1 = 2,432,902,008,176,640,000

    3. A student is to ...

    Solution Summary

    This solution is comprised of a detailed explanation to answer how many different assignments are possible, how many choices has she, how many if she must answer at least 3 of the first 5 questions, and how many results are possible.

    $2.19

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