Homework Answers
Answer - 4: P(Male or said yes) = (22 + 19 + 24 + 19)/(22 + 19 + 24 + 19 + 18 + 20) = 0.689
Answer - 5: P(Atleast one) = 1 - P(None) = 1 - (1 - 0.26)3 = 0.595
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QUESTION 4 In a recent study the following data was obtained in response to the question...
1. In a recent study, the following responses were obtained to the question, “Do you favor...
1. In a recent study, the following responses were obtained to the question, “Do you favor recycling in your neighborhood?”. Given that the respondent was a female, what is the probability that she indicated "No Opinion" in her response? Round your result to 2 significant places after the decimal (For example, 0.86732 should be entered as 0.87). Yes No No Opinion Male 92 48 47 Female 78 63 49 2. Given the following discrete probability distribution, calculate the...
recent survey, the following data were obtained in response to the questions, the number of summer...
recent survey, the following data were obtained in response to the questions, the number of summer classes were increased, would you be more likely to enroll in one or more of them?" No Undecided Class Yes 8 15 Freshmen Sophomores a) If a student is selected at random, find the probability the student answered no given the student was a sophomore. Write answer as a percent rounded to two decimal places. (3 points) b) If a student is selected at...
A random sample of adult drivers was obtained, 53% men and 46% women. A survey showed...
A random sample of adult drivers was obtained, 53% men and 46% women. A survey showed that 57% of the drivers rely on GPS systems. 32% of the drivers are men and use GPS while 24% of the drivers are women and use GPS. Suppose a person included in this survey is randomly selected. a.) Suppose the person selected is a man. What is the probability that he relies on a GPS system? Your answer should have at least 3...
A random sample of adult drivers was obtained, 55% men and 43% women. A survey showed...
A random sample of adult drivers was obtained, 55% men and 43% women. A survey showed that 57% of the drivers rely on GPS systems. 32% of the drivers are men and use GPS while 21% of the drivers are women and use GPS. Suppose a person included in this survey is randomly selected. a) Suppose the person selected is a man. What is the probability that he relies on a GPS system? Your answer should have at least 3...
Question 11 of 31 (1 point) 9.4 Section Exercise 15 (table) A recent random survey of...
Question 11 of 31 (1 point) 9.4 Section Exercise 15 (table) A recent random survey of 105 individuals in Michigan found that 75 drove to work alone. A similar survey of 120 commuters in New York found that 64 drivers drove alone to work. Find the 95% confidence interval for the difference in proportions. Use ê, for the proportion of Michigan drivers who drive alone to work. Round your answers to three decimal places. <P1-P2 Question 12 of 31 (1...
Survived COVID-19 Died Race/ethnicity Hispanic 370,257 14,865 19,472 Black 219,649 368,534 43,029 White 104,423 9,389 Everyone...
Survived COVID-19 Died Race/ethnicity Hispanic 370,257 14,865 19,472 Black 219,649 368,534 43,029 White 104,423 9,389 Everyone else Question 8 5 pts If a person is selected at random, what is the probability that that person survived COVID- 19 (report your answer as a proportion correct to 4 decimal places)? Question 9 5 pts If a Hispanic person is selected at random, what is the probability that that person has survived COVID-19 (report your answer as a proportion correct to 4...
7. -1.25 points TanFin10 7.3.043. 0/6 Submissions Used My NOUS The following table gives the percentage...
7. -1.25 points TanFin10 7.3.043. 0/6 Submissions Used My NOUS The following table gives the percentage of music downloaded from the United States and other countries by U.S. users: Country U.K Other U.S. Germany Canada Italy France Japan Percent 45.0 16.0 7.3 6.5 4.3 4.0 2.9 14.0 (a) Verify that the table does give a probability distribution for the experiment. The sum of the percents is %, so this does give a probability distribution. (b) What is the probability that...
A recent study found that 43% of college students engage in binge drinking (5 drinks at...
A recent study found that 43% of college students engage in binge drinking (5 drinks at a sitting for men, 4 for women). After hearing of the result, a professor surveyed a random sample of 295 students at his college and found that 115 admitted to binge drinking in the last week. Should he be surprised at this result? Explain Select the correct choice below and fill in the answer box to complete your choice (Round to three decimal places...
The data represent the number of driving fatalities for a certain area by age for male...
The data represent the number of driving fatalities for a certain area by age for male and female drivers. Male Female under 16 197 141 16-20 6278 2243 21-34 13.950 4260 35-54 11037 5125 55-69 40812167 70 and over 3400 1641 (a) What is the probability that a randomly selected driver fatality who was male was 16 to 20 years old? The probability that a randomly selected driver fatality who was male was 15 to 20 years old is approximately...
In a recent study, 30% of people surveyed indicate chocolate was their favorite flavor of ice...
In a recent study, 30% of people surveyed indicate chocolate was their favorite flavor of ice cream. Suppose we select a sample of 9 people and ask them to name their favorite flavor of ice cream. How many of those in the sample would you expect to name chocolate? (Round your answer to 1 decimal place.) What is the probability exactly three of those in the sample name chocolate? (Round the probability to 5 decimal places and the final answer...
recent survey, the following data were obtained in response to the questions, the number of summer classes were increased, would you be more likely to enroll in one or more of them?" No Undecided Class Yes 8 15 Freshmen Sophomores a) If a student is selected at random, find the probability the student answered no given the student was a sophomore. Write answer as a percent rounded to two decimal places. (3 points) b) If a student is selected at...
Question 11 of 31 (1 point) 9.4 Section Exercise 15 (table) A recent random survey of 105 individuals in Michigan found that 75 drove to work alone. A similar survey of 120 commuters in New York found that 64 drivers drove alone to work. Find the 95% confidence interval for the difference in proportions. Use ê, for the proportion of Michigan drivers who drive alone to work. Round your answers to three decimal places. <P1-P2 Question 12 of 31 (1...
Survived COVID-19 Died Race/ethnicity Hispanic 370,257 14,865 19,472 Black 219,649 368,534 43,029 White 104,423 9,389 Everyone else Question 8 5 pts If a person is selected at random, what is the probability that that person survived COVID- 19 (report your answer as a proportion correct to 4 decimal places)? Question 9 5 pts If a Hispanic person is selected at random, what is the probability that that person has survived COVID-19 (report your answer as a proportion correct to 4...
7. -1.25 points TanFin10 7.3.043. 0/6 Submissions Used My NOUS The following table gives the percentage of music downloaded from the United States and other countries by U.S. users: Country U.K Other U.S. Germany Canada Italy France Japan Percent 45.0 16.0 7.3 6.5 4.3 4.0 2.9 14.0 (a) Verify that the table does give a probability distribution for the experiment. The sum of the percents is %, so this does give a probability distribution. (b) What is the probability that...
A recent study found that 43% of college students engage in binge drinking (5 drinks at a sitting for men, 4 for women). After hearing of the result, a professor surveyed a random sample of 295 students at his college and found that 115 admitted to binge drinking in the last week. Should he be surprised at this result? Explain Select the correct choice below and fill in the answer box to complete your choice (Round to three decimal places...
The data represent the number of driving fatalities for a certain area by age for male and female drivers. Male Female under 16 197 141 16-20 6278 2243 21-34 13.950 4260 35-54 11037 5125 55-69 40812167 70 and over 3400 1641 (a) What is the probability that a randomly selected driver fatality who was male was 16 to 20 years old? The probability that a randomly selected driver fatality who was male was 15 to 20 years old is approximately...
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