The contingency table below shows the results of a survey of video viewing habits by age. Viewer Age Mobile/Laptop Device TV Screen Row Total 18–34 37 22 59 35–54 13 13 26 55+ 6 9 15 Column Total 56 44 100 Find the following probabilities or percentages: (a) Probability that a viewer is aged 18–34. (Round your answer to 2 decimal places.) (b) Probability that a viewer prefers watching videos on a TV screen. (Round your answer to 2 decimal places.) (c) Percentage of viewers who are 18–34 and prefer videos on a mobile or laptop device. (d) Percentage of viewers aged 18–34 who prefer videos on a mobile or laptop device. (Round your answer to 2 decimal places.) Percentage_______ (e) Percentage of viewers who are 35–54 or prefer videos on a mobile or laptop device. Percentage_________

The contingency table below shows the results of a survey of video viewing habits by age. Viewer Age Mobile/Laptop Device TV Screen Row Total 18–34 37 22 59 35–54 13 13 26 55+ 6 9 15 Column Total 56 44 100 Find the following probabilities or percentages: (a) Probability that a viewer is aged 18–34. (Round your answer to 2 decimal places.) (b) Probability that a viewer prefers watching videos on a TV screen. (Round your answer to 2 decimal places.) (c) Percentage of viewers who are 18–34 and prefer videos on a mobile or laptop device. (d) Percentage of viewers aged 18–34 who prefer videos on a mobile or laptop device. (Round your answer to 2 decimal places.) Percentage_ (e) Percentage of viewers who are 35–54 or prefer videos on a mobile or laptop device. Percentage___

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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Question content area top left Part 1 Use the accompanying bar graph, which shows the highest level of education received by employees of a company, to find the probability that the highest level of education for an employee chosen at random is a doctoratea doctorate. ... Question content area top right Part 1 A bar graph titled Level of Education has a horizontal axis labeled Doctoral, Master's, Bachelor's, Associate's, High School diploma, and Other and a vertical axis labeled Number of employees from 0 to 40 in increments of 5. There are vertical bars, each of which is over a horizontal axis label. The heights of the bars are as follows, where the horizontal axis label is listed first and the height is listed second: Doctoral, 2; Master's, 25; Bachelor's, 32; Associate's, 24; High School diploma, 4; Other, 1. Each bar is labeled with its height. Level of education ABCDEF010203040Number of employeesA:DoctoralB:Master'sC:Bachelor'sD:Associate'sE:High School…
The table shows the distribution, by age and gender, of the 28.5 million people in a certain region who live alone. Use the data in the table to find the probability that a randomly selected person in the region is a woman in the 18-24 age range living alone. Male Female Total Attempted Ages Ages Ages Ages Ages Ages 18-24 25-34 35-44 45-64 65-74 275 Total 0.9 2.3 2.4 0.7 1.5 1.2 1.6 3.8 3.6 4.6 1.4 1.5 4.8 6.3 5.0 2.2 9.6 3.6 BECER 13.1 15.4 28.5 The probability is (Type an integer or decimal rounded to the nearest hundredth as needed.)
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At a particular college 12 percent of the students major in Business. All Business majors are required to take a Statistics Course. Of the students not majoring in Business, 48 percent of them still have to take a Statistics Course. What is the probability that a student has to take a Statistics Course at this particular college? Type your anser as a decimal to 4 decimal places.
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1. Use this table for the following questions: Female Male TotalShort Hair 20 40 60 Long Hair 30 10 40 Total 50 50 100 a. Complete a total probability table.b. Complete a row probability tablec. Complete a column probability table.d. The probability that a student does not have long hair. _________e. The probability that a student is male or has short hair. ________f. The probability that a student is a female and has long hair. _________g. The probability that a student is male, given that the student has long hair. _________h. The probability that a student has long hair, given that the student is male. _________i. Of all the female students, the probability that a student has short hair. ________j. Of all students with long hair, the probability that a student is female. _________k. The probability that a student is female or has long hair.…
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Use the data in the table below, which shows the employment status of individuals in a particular town by age group. Part-time Unemployed Age Full-time 0-17 25 187 252 18-25 391 200 199 26-34 434 66 22 35-49 562 192 149 50+ 461 170 237 If a person is randomly chosen from the town's population, what is the probability that the person is under 18 or employed part-time?
A university conducted a survey of 390 undergraduate students regarding satisfaction with student government. Results of the survey are shown in the table by class rank. Complete parts (a) through (d) below. Click the icon to view the table. (a) If a survey participant is selected at random, what is the probability that he or she is satisfied with student government? P(satisfied) = (Round to three decimal places as needed.) Data Table ETTITI Freshman Sophomore Junior Senior Total Satisfied 60 52 63 55 230 Neutral 26 18 20 10 74 Not satisfied 21 19 18 28 86 Total 107 89 101 93 390 Print Done
The table below shows the number of deaths in the U.S. in a year due to a variety of causes. For these questions,assume these values are not changing from year to year, and that the population of the United States is 312 millionpeople. Cause of Death in US Cause Number of deaths Passenger car occupant 13,100 Motorcycle driver 4,500 Tornado 553 Skydiving 56 What is the probability that you died as a passenger car occupant last year?