Q1. A multiple choice test contains 10 questions, each with four answers. Assume a student just guesses on each question. (a) What is the probability that the student answers more than 7 questions correctly? (b) What is the probability the student answers less than 3 questions correctly? (c) What is the probability the student will pass the exam.
Q1. A multiple choice test contains 10 questions, each with four answers. Assume a student just guesses on each question. (a) What is the probability that the student answers more than 7 questions correctly? (b) What is the probability the student answers less than 3 questions correctly? (c) What is the probability the student will pass the exam.
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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Transcribed Image Text:Q1. A multiple choice test contains 10 questions, each with four answers. Assume a
student just guesses on each question.
(a) What is the probability that the student answers more than 7 questions
correetly?
(b) What is the probability the student answers less than 3 questions correctly?
(c) What is the probability the student will pass the exam.
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