What age groups use social networking sites? A recent study produced the following dataabout 768 individuals who were asked their age and which of three social networking sitesthey used most often. (People who did not use such sites were excluded from the study).Age Group (Years)25 – 44Web site0 – 2445 – 64Over 65TotalsFacebook7710511412308Twitter46110817244LinkedIn159795216Totals13831229028768Suppose one subject from this study was selected at random. Give your answer in reduced (simplified) fraction. (Example: 1/2)Find the probability that the selected subject preferred Twitter, given that he or she was inthe 45 – 64 age group.

Answered: Image /qna-images/answer/c1388337-3a2e-4b60-9231-a386fd883e7d.jpg

Answered: What age groups use social networking…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Is it 0.18 or 0.36
The following data represents the age of 30 lottery winners. 20| 33 34 35 36 40 41 44 45 47 49 51 52 52 55 56 56 57 59 61 62 62 67 67 71 72 72 74 74 85 Complete the frequency distribution for the data. Age Frequency 20-29 30-39 40-49 50-59 60-69 70-79 80-89 Question Help: DPost to forum Submit Question
12. The rise of online streaming services such as Netflix and HBO Go has dramatically altered the media habits of Americans, especially young adults. A survey was conducted by interviewers at Princeton Data Sources. They selected a nationwide random sample of 384 adults and asked, "What is the primary way you watch television: cable, online streaming, or digital antenna?" The observed counts are given in the side-by-side frequency bar graphs below. Cable or satellite subscription Online streaming service Digital antenna 100 80 80- 60 40 Frequency 31 61 19 70 84 20- 15 10 0 18-29 30-49 50-64 65+ Ages (b) Which cell contributes the most to the chi-square statistic? Describe how the observed and expected counts differ for that category.
Consider the following data set: 56, \ 56, \ 64, \ 45, \ 69, \ 42, \ 42, \ 18, \ 42, \ 65 59, \ 71, \ 64, \ 18, \ 42, \ 72, \ 62, \ 20, \ 69, \ 60 72, \ 71, \ 51, \ 62, \ 42, \ 62, \ 66, \ 72, \ 60, \ 18 The class width of a histogram with 6 classes is
In a recent survey [YouGov, 11th–16th June 2020], 1088 adults were asked (amongst other questions) if they thought Watford counted as part of London. The following excerpt from the results shows the number of survey participants in different age categories and the percentage of them saying that they did consider Watford as part of London. Age 18-24 25-49 50–64 65+Number of participants 124 544 247 173 Percentage saying Watford is in London 31 34 15 19
13
Would observations or interviews be more appropriate to research the following topic?People's behaviors at dog parks.O ObservationO Interviews
In recent year, 28 US States had one or more tribal gambling casinos. The following table presents the number of tribal gambling casinos in those states.3 2 26 70 2 2 87 3 4 3 22 39 314 7 3 21 8 2 11114 8 14 1 34 31 4 Find the 5-number summaryConstruct a boxplot for these data
The 2008 general social survey asked a nationally representative sample of 1324 adult americans to report how many hours of television they watch in a typical day. The resulting data are reported in the following table counts. What is the mean numbers of hours of tv watched?
A 2012 study of freely forming groups in bars all over Europe examined the natural behavior of groups. The researchers recorded the group size (number of individuals in the group) of all 501 groups in the study that were naturally laughing. The findings were displayed in the figure below. 300 Number of groups 250 200 O 52 O 2.7 0 2 150 3.5 4 100 50 0 254 2 Enter your answer here The median laughter group size in this study is 168 3 The mean laughter group size in this study is O 100.2 Enter your answer here 52 4 5 Laughter group size 21 6 6 Can we conclude from these findings that, in European bars in 2012, smaller groups were more likely than larger groups to be naturally laughing? Explain your statistical reasoning in one sentence.
11 Find the mode(s) for the following group of data items. 4.3, 6.5, 7.7, 5.4, 6.9, 6.9, 5.9, 7.4, 6.3, 5.2, 5.2 Select the correct choice below and, if necessary, fill in the answer box within your choice. A.The mode(s) is/are ______. ��(Use a comma to separate answers as needed.) B.There is no mode.
The following table shows some data from a study on substance use among 10th graders in the United States and Europe. Smoked Cigarettes Cigarette-Free Totals U.S. 14,000 Europe 96,000 Total 71,210 110,000

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS