An advertising agency in a large city is conducting a survey of adults to investigate whether there is an association between highest level of educational achievement and primary sor news. The company takes a random sample of 2,500 adults in the city. The results are shown in the table below. HIGHEST LEVEL OF EDUCATIONAL ACHIEVEMENT Not High School Graduate High School Graduate But Not College Primary Source for News College Graduate Total Graduate Newspapers Local television Cable television 205 170 496 188 75 147 442 335 756 687 49 06 113 Internet 41 401 245 77 165 38 280 None 370 1.437 693 2,500 Total Enter each probability in decimal form, rounded to three decimal places. If an adult is to be selected at random from this sample, what is the probability that the selected adult is a college graduate? If an adult is to be selected at random from this sample, what is the probability that the selected adult obtains news primarily from the internet? If an adult is to be selected at random from this sample, what is the probability that the selected adult is a college graduate and obtains news primarily from the internet? What is the probability that an adult obtains news primarily from newspapers given that he/she is a high school graduate?
An advertising agency in a large city is conducting a survey of adults to investigate whether there is an association between highest level of educational achievement and primary sor news. The company takes a random sample of 2,500 adults in the city. The results are shown in the table below. HIGHEST LEVEL OF EDUCATIONAL ACHIEVEMENT Not High School Graduate High School Graduate But Not College Primary Source for News College Graduate Total Graduate Newspapers Local television Cable television 205 170 496 188 75 147 442 335 756 687 49 06 113 Internet 41 401 245 77 165 38 280 None 370 1.437 693 2,500 Total Enter each probability in decimal form, rounded to three decimal places. If an adult is to be selected at random from this sample, what is the probability that the selected adult is a college graduate? If an adult is to be selected at random from this sample, what is the probability that the selected adult obtains news primarily from the internet? If an adult is to be selected at random from this sample, what is the probability that the selected adult is a college graduate and obtains news primarily from the internet? What is the probability that an adult obtains news primarily from newspapers given that he/she is a high school graduate?
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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Transcribed Image Text:An advertising agency in a large city is conducting a survey of adults to investigate whether there is an association between highest level of educational achievement and primary source for
news. The company takes a random sample of 2,500 adults in the city. The results are shown in the table below.
HIGHEST LEVEL OF EDUCATIONAL ACHIEVEMENT
Not High
School
Graduate
High School Graduate
But Not College
Graduate
Primary Source
for News
College Graduate
Total
Newspapers
Local television
Cable television
205
170
496
188
75
147
442
335
756
687
49
90
113
Internet
41
401
245
77
165
38
280
None
370
1.437
693
2,500
Total
Enter each probability in decimal form, rounded to three decimal places.
If an adult is to be selected at random from this sample, what is the probability that the selected adult is a college graduate?
If an adult is to be selected at random from this sample, what is the probability that the selected adult obtains news primarily from the internet?
If an adult is to be selected at random from this sample, what is the probability that the selected adult is a college graduate and obtains news primarily from the internet?
What is the probability that an adult obtains news primarily from newspapers given that he/she is a high school graduate?
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