A survey of 523 adults aged 18-24 year olds was conducted in which they were asked what they did last Friday night. It found: 160 watched TV 178 hung out with friends 190 ate pizza 25 watched TV and ate pizza, but did not hang out with friends 40 watched TV and hung out with friends, but did not eat pizza 42 hung out with friends and ate pizza, but did not watch TV 26 watched TV, hung out with friends, and ate pizza How may 18-24 year olds did not do any of these three activities last Friday night?

A survey of 523 adults aged 18-24 year olds was conducted in which they were asked what they did last Friday night. It found: 160 watched TV 178 hung out with friends 190 ate pizza 25 watched TV and ate pizza, but did not hang out with friends 40 watched TV and hung out with friends, but did not eat pizza 42 hung out with friends and ate pizza, but did not watch TV 26 watched TV, hung out with friends, and ate pizza How may 18-24 year olds did not do any of these three activities last Friday night?

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...

See similar textbooks

Similar questions

A consumer survey was conducted to examine patterns in ownership of tablet computers, cellular telephones, and Blu-ray players. The following data were obtained: 311 people had tablet computers, 236 had cell phones, 265 had Blu-ray players, 65 had all three, 62 had none, 92 had cell phones and Blu-ray players, 57 had cell phones but no computers or Blu-ray players, and 108 had computers and Blu-ray players but no cell phones. (Round your answers to one decimal place.) A) What percent of people surveyed owned a cell phone? B) What percent of the people surveyed owned only a cell phone?
10. For adults, certain type of cancers can be treated with multiple health interventions. To gain information about all Maryland-based treatment centers a survey is sent to a randomly chosen group of 25 Maryland based treatment centers that asks about the recommended interventions for cancer patients based on medical records, insurance, and income. All of the randomly selected treatment centers completed the survey. The sample is: For adults, certain type of cancers can be treated with multiple health interventions. To gain information about all Maryland-based treatment centers a survey is sent to a randomly chosen group of 25 Maryland based treatment centers that asks about the recommended interventions for cancer patients based on medical records, insurance, and income. All of the randomly selected treatment centers completed the survey. The sample is: a. the 25 Maryland-based treatment centers b. the medical records, insurance, and income c. all Maryland-based treatment…
A skin patch contains a new drug to help people quit smoking. A group of 75 cigarette smokers have volunteered as subjects to test the new skin patch. For one month, 40 of the volunteers receive skin patches with the new drug. The other volunteers receive skin patches with no drugs. At the end of the two months, each subject is surveyed regarding his or her current smoking habits. (Select all that apply.) a) No placebo is being used.b) Then record the smoking habits of all volunteers to see if a difference exists between the two groups.c) Then record the smoking habits of the 40 volunteers to see if a difference exists between the two groups.d) Use random selection to pick 40 volunteers for the skin patch with the drug.e) Use random selection to pick 35 volunteers for the skin patch with the drug.f) A placebo patch is used for the remaining 35 volunteers in the second group.g) Then record the smoking habits of the 35 volunteers to see if a difference exists between the two groups.
In a survey of 233 people about the operating systems of various devices that they use (cell phone, tablet, laptop, etc.), the following results were obtained: 146 people use an Android device 150 people use an Apple device 79 people use Android and Apple devices 77 people use Android and Windows devices 67 people use an Apple device, but no Windows device 32 people use Android, Apple, and Windows devices 8 people use devices that are not Android, not Apple, and not Windows How many people use a Windows device?
As part of a statistics project, a teacher brings a bag of marbles containing 800 white marbles and 200 red marbles. She asks her students to determine how many red marbles are in the bag without counting them.A student randomly draws 150 marbles from the bag. Of the 150 marbles, 35 are red. A)The target population consists of The 1000 marbles in the bag The 150 marbles drawn by the student The 200 red marbles in the bag The 35 red marbles drawn by the student None of the above B)The sample consists of None of the above The 150 marbles drawn by the student The 200 red marbles in the bag The 1000 marbles in the bag The 35 red marbles drawn by the student c)Based on the sample, the student would estimate that _______marbles in the bag were red
A consumer survey was conducted to examine patterns in ownership of tablet computers, cellular telephones, and Blu-ray players. The following data were obtained: 315 people had tablet computers, 236 had cell phones, 265 had Blu-ray players, 69 had all three, 64 had none, 94 had cell phones and Blu-ray players, 55 had cell phones but no computers or Blu-ray players, and 104 had computers and Blu-ray players but no cell phones. (Round your answers to one decimal place.) (a) What percent of the people surveyed owned a cell phone? % (b) What percent of the people surveyed owned only a cell phone? %
a. A marine biologist measures the effectiveness of mating displays among tortoises in one of six environmental conditions. Ten tortoises are randomly assigned to each condition. (for this item, also give the degrees of freedom) b. A neuropsychologist measures the behavioral response to electrical stimulation in one of five brain regions. c. A sociologist records the number of children born in a local village each season (spring, summer, fall, winter) in a single year. d. A social psychologist has participants rate the likability of a person described as having one of three types of leadership styles. The breakdown of leadership styles is 25 autocratic, 25 bureaucratic, and 25 democratic. (for this item, also give the degrees of freedom) For items (a) – (d) identify the following: k? N? n? (assumed equal size groups)? What is the decision at 0.05 level of significance for each of the following tests? Are post hocs necessary? a. F(3, 28) = 3.00 b. F(1, 40) = 4.98 c. F(4, 30) = 2.72 d.…
A survey of 1088 adults in a country, asking "As you may know, as part of its effort to investigate terrorism, a federal government agency obtained records from larger telephone and Internet companies in order to compile telephone call logs and Internet communications. Based on what you have heard or read about the program, would you say that you approve or disapprove of this government program?" Of those surveyed, 588 said they disapprove. a. Determine and interpret the sample proportion. b. At the 10% significance level, do the data provide sufficient evidence to conclude that a majority (more than 50%) of adults in the country disapprove of this government surveillance program? ..... a. The sample proportion is (Round to two decimal places as needed.) The sample proportion from this study is the proportion of adults in the that of the government surveillance program. b. What are the hypotheses for the one-proportion z-test? Ho: p= Ha:p (Type integers or decimals.) What is the test…
Your group is expected to interview at least 40 random persons about their preference for shopping online and whether they would be interested in such services. Record the following for each respondent: Age Gender Whether they go shopping at the supermarket/pharmacy. How many times they shop at the supermarket/pharmacy per month. Would they be interested in purchasing items from the supermarket/pharmacy online or through a mobile application? Would they be willing to pay a subscription fee to utilize this service? If yes what is the maximum fee that they would be willing to pay. The amount of money they are willing to pay to have the goods delivered to them. In the absence of a subscription fee or delivery fee, would they be willing to pay a marginally higher price for the good purchased online? If yes, what percentage would be reasonable [group in the following way: less than 1% higher, 1% - 5% higher, over 5% higher] Respondent Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 1 28 F YES 3 NO NO $5…
A survey of 519 adults aged 18-24 year olds was conducted in which they were asked what they did last Friday night. It found: 180 watched TV 164 hung out with friends 189 ate pizza 47 watched TV and ate pizza, but did not hang out with friends 30 watched TV and hung out with friends, but did not eat pizza 39 hung out with friends and ate pizza, but did not watch TV 43 watched TV, hung out with friends, and ate pizza How may 18-24 year olds did not do any of these three activities last Friday night?