Answered: A student is asked to answer seven of…

A student is asked to answer seven of ten questions on a test. How many different ways can a selection of questions occur if there are no restrictions?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Question

A student is asked to answer seven of ten questions on a test. How many different ways
can a selection of questions occur if there are no restrictions?

Expert Solution

Step 1

$Given Total no . of question (n) = 10 No . of questions student asked to answer (r) = 7$

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