The scores on a finite mathematics test were normally distributed with a mean of 80 and a standard deviation of 15. [a] The minimum score a student could obtain in order to receive an A is 90. What is the probability a randomly selected student receives an A? [b] The minimum score a student could obtain in order to pass the test is 55. What is the probability a randomly selected student failed the test?
The scores on a finite mathematics test were normally distributed with a mean of 80 and a standard deviation of 15. [a] The minimum score a student could obtain in order to receive an A is 90. What is the probability a randomly selected student receives an A? [b] The minimum score a student could obtain in order to pass the test is 55. What is the probability a randomly selected student failed 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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The scores on a finite mathematics test were normally distributed with a mean of 80 and a standard deviation of 15.
[a] The minimum score a student could obtain in order to receive an A is
90. What is the probability a randomly selected student receives an A?
[b] The minimum score a student could obtain in order to pass the test is
55. What is the probability a randomly selected student failed the test?
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