A student must answer 6 out of 8 questions on an exam. How many different ways can he do the exam? If the first two questions are mandatory, how many ways can he do the exam?
A student must answer 6 out of 8 questions on an exam. How many different ways can he do the exam? If the first two questions are mandatory, how many ways can he do the exam?
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.6: Permutations And Combinations
Problem 1SC: If a man has 4 sweaters and 5 pairs of slacks, how many different outfit can he wear?
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A student must answer 6 out of 8 questions on an exam. How many different ways can he do the exam? If the first two questions are mandatory, how many ways can he do the exam?
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