2. A survey found that 73% of Americans have a home phone, 83% have a cell phone, and 58% of people have both.a. What is the probability of a person having only a cell phone?b. What is the probability of a person having neither a house phone or a cell phone?c. If a person has a home phone, what is the probability that they have a cell phone also?d. Are having a home phone and a cell phone independent? Explain.

Note: As per the Bartelby guidelines only three sub-parts can be answered. Kindly resubmit the…

Answered: 2. A survey found that 73% of Americans…

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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df I Evicted Chapters E Financing Higher E... 5) The principle of redundancy is used when system reliability is improved through redundant or backup components. Assume that your alarm clock has a 0.9 probability of working on any given morning. a) What is the probability that your alarm clock will not work on the morning of an important final exam?
A gardener buys 10 packets of seeds from two different companies. Each pack contains 20 seeds and he records the number of plants which grow from each pack. Company A 20 20 20 6 18 20 17 20 15 20 Company B 17 5 18 20 16 18 18 15 1. Find the mean, median and mode for each company's seeds 2. Which company does the mode suggest is best? 3. Which company does the mean suggest is best? 4. Find the range for each company's seeds. 17
2. Employees of a company were asked to rate the nation's economy and their political party. TTT Republican Democrat Independent 2. 23 26 18 Excellent Good Not So Good 11 28 3 Poor 9. a. Find the probability an employee said good. b. Find the probability an employee said the Green party. c. Find the probability an employee said Republican and excellent d. Find the probability an employee said Independent or not so good. e. Find the probability an employee said excellent or poor. f. Find the probability a Democrat employee said good.
3. The question, “Do you play sports?" was asked of 80 students. The results of the survey are shown below. Yes No Female 27 13 Male 31 9 a. What is the probability that the person plays sports given that the person is a male? b. What is the probability the person is a female given that she does not play sports?
The sales force of a business consists of 10 men and 10 women. A production unit of 9 people is set up at random. a. What is the probability that it will consist of 4 men and 5 women? b. What is the probability that it will consist of all men? c. What is the probability that it will consist of at least one woman. a. The probability that it will consist of 4 men and 5 women is. (Simplify your answer. Type an integer or a fraction.)
What is the probability of selecting a car that is blue or red when the car park is filled with 11 red cars 12 white cars and 15 blue cars? O a. 11/38 O b. 2/38 O C. 26/38 O d. 15/38
1) According to a recent poll about 60% of vaccinated Americans say they still wear a mask in public indoor settings. In a group of 5 vaccinated Americans: a-The probability that exactly 4 wear a mask is ..... what %. b-The probability that at least 4 wear a mask is ..... what %. c-The probability that fewer than 4 wear a mask is ..... what %.
4. Consider a family with three children. Given that at least one of the children is a boy, what is the probability that the three children children are boys? (assume that the probability of having a boy is 0.5, and that the gender of the second child is independent of the gender of the first child and of the gender of the third child)
Suppose 33.3% of high school students eat pizza and 42% drink soda. If 17.3% of high school students eat pizza and drink soda, what is the probability that a randomly chosen high student will either eat pizza, drink soda, or both?
In the United States, voters who are neither Democrat nor Republican are called Independent. It is believed that 10% of voters are Independent. A survey asked 26 people to identify themselves as Democrat, Republican, or Independent. A. What is the probability that none of the people are Independent? B. What is the probability that fewer than 6 are Independent? C. What is the probability that more than 3 people are Independent?
6. Clinical trials have shown that 90% of the patients with severe migraine experience relief of their pain after taking the drug Nimodipine. Suppose 15 migraine patients try Nimodipine. a. What is the probability all of the patients experience relief? b. What is the probability only 10 patients experience relief? What is the probability at least 12 patients experience relief? d. What is the probability at most 10 patients experience relief? e. How many are expected to experience relief?
In a representative household telephone survey of 2,876 adults, 15% reported that they own at least one gun. Of those that own a gun, 3% own a handgun. Suppose that one of the 2,876 adults surveyed is randomly selected. a. What is the probability that the adult owns at least one gun? b. What is the probability that the adult owns at least one gun and the gun is a handgun? a. The probability that the adult owns at least one gun is (Simplify your answer. Type an integer or a decimal. Do not round.)

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