There are 10 questions on a multiple-choice quiz. Each question has four possible answers. Suppose Lisa knows the answer to 4 of the questions and guesses the answers to the other 6. What is the probability that a) She gets 10/10 on her test? b) She passes the test (achieves a mark of at least 50%)

There are 10 questions on a multiple-choice quiz. Each question has four possible answers. Suppose Lisa knows the answer to 4 of the questions and guesses the answers to the other 6. What is the probability that a) She gets 10/10 on her test? b) She passes the test (achieves a mark of at least 50%)

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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