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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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

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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