a. Find the probability that the student answers between 33 and 43 questions correctly on the test b. Find the probability that the student answers at most 40 questions correctly on the test.
a. Find the probability that the student answers between 33 and 43 questions correctly on the test b. Find the probability that the student answers at most 40 questions correctly on the test.
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:Exercise #7
On a 50 question true/false test, a student has a 75% chance of answering each question correctly
a. Find the probability that the student answers between 33 and 43 questions correctly on the test
b. Find the probability that the student answers at most 40 questions correctly on the test.
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