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A sample of 300 new cars were checked for defects. The following table shows the results of the study. Fewer Six or More than Total Six Defects Defects American 41 116 157 Built Foreign Built 30 113 143 Total 71 229 300 One car is selected at random. Round your answers to two decimals. (a) What is the probability a randomly selected car was American built? Show your work. Enter the work/fraction you used to get your answer.

A sample of 300 new cars were checked for defects. The following table shows the results of the study. Fewer Six or More than Total Six Defects Defects American 41 116 157 Built Foreign Built 30 113 143 Total 71 229 300 One car is selected at random. Round your answers to two decimals. (a) What is the probability a randomly selected car was American built? Show your work. Enter the work/fraction you used to get your answer.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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(c) What is the probability that a randomly selected car was American AND had six or more defects? Show your work. Enter the work/fraction you used to get your answer. (d) What is the probability that a randomly selected car was American OR had six or more defects? Show your work. Enter the work/fraction you used to get your answer. (e) If a hypothesis test for independence was to be performed, find all the expected counts and enter them into the table below. Round your answers to two decimals. Fewer than Six or More Six Defects Defects American Built Foreign Built
Transcribed Image Text:(c) What is the probability that a randomly selected car was American AND had six or more defects? Show your work. Enter the work/fraction you used to get your answer. (d) What is the probability that a randomly selected car was American OR had six or more defects? Show your work. Enter the work/fraction you used to get your answer. (e) If a hypothesis test for independence was to be performed, find all the expected counts and enter them into the table below. Round your answers to two decimals. Fewer than Six or More Six Defects Defects American Built Foreign Built
A sample of 300 new cars were checked for defects. The following table shows the results of the study. Fewer than Six or More Total Six Defects Defects American 41 116 157 Built Foreign Built 30 113 143 Total 71 229 300 One car is selected at random. Round your answers to two decimals. (a) What is the probability a randomly selected car was American built? Show your work. Enter the work/fraction you used to get your answer. (b) What is the probability that a randomly selected car had fewer than six defects, given that it is foreign built? Show your work. Enter the work/fraction you used to get your answer.
Transcribed Image Text:A sample of 300 new cars were checked for defects. The following table shows the results of the study. Fewer than Six or More Total Six Defects Defects American 41 116 157 Built Foreign Built 30 113 143 Total 71 229 300 One car is selected at random. Round your answers to two decimals. (a) What is the probability a randomly selected car was American built? Show your work. Enter the work/fraction you used to get your answer. (b) What is the probability that a randomly selected car had fewer than six defects, given that it is foreign built? Show your work. Enter the work/fraction you used to get your answer.
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