(c) A survey of 110 students on three electronics devices, smart watch, tablet and laptop,produced the following statistics:39 students own a smart watch,70 students own a tablet,70 students own a laptop,32 students own a smart watch and a tablet,40 students own a tablet and a laptop,25 students own a laptop and a smart watch, and20 students own all electronics devices.(i) Represent the above information on a Venn diagram.(ii) Find the number of students does not own any of the three electronics devices.

Given Information: Total number of students is 110. Number of students own a smartwatch is 39 Number…

Answered: (c) A survey of 110 students on three…

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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Assume that you are employed by a mobile phone company and you want to characterize costumers on the basis of their mobile-phone activity. Which type of network would be most useful for representing the mobile-phone data of your company? Select one: a. Directed,Unweighted b. Directed,Weighted c. Simple d. Undirected, Weighted
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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
"Tech D" has collected data concerning their 622 employees: 305 are married; 332 are over 40 years old; 311 are female; 196 are married and over 40; 181 are married and female; 235 are over 40 and female; 126 are married, over 40, and female. How many employees are over 40 and not married? You may want to draw a Venn Diagram to illustrate this situation.
Virginia polled a large sample of individuals to find the percentage of students with known food allergies and the percentage of students without known food allergies. Which of the following could sufficiently display the data if only the two given categories are to be included? Select the correct answer below: bar graph pie chart either a pie chart or a bar graph neither a pie chart nor a bar graph
64 owners and a similar age group of pet owners. The pet owners are matched one to one with the non-pet owners for income, number of close friendships, and 0. A researcher uses a matched-subjects design to in- than singles without pets. A mood inventory survey vestigate whether single people with pets are happier happier is given to a group of 20- to 29-year-old non-p general health. The data follow: Non-Pet Owner Pet Owner Matched Pair 12 14 8. 10 13 9. 9. D 13 E 10 12 F a. Is there a significant difference in the mood scores for non-pet owners versus pet owners? Test with a = .05 for two tails. b. Construct the 95% confidence interval to estimate the size of the mean difference in mood between the population of pet owners and the population of non-pet owners. (You should find that a mean difference of p, = 0 is an acceptable value, which is consistent with the conclusion from the hypoth- esis test.) %3D D. AB
A group conducted a study of the calorie content of different types of beer. The calorie content (calories per 100 ml) for 26 brands of light beer are summarized in the table below. 43 39 25 35 34 19 37 41 30 38 31 27 33 41 39 29 22 41 27 28 39 24 22 36 37 35 (a) Construct a stem-and-leaf display using stems 1, 2, 3, and 4. (Enter numbers from smallest to largest separated by spaces. Enter NONE for stems with no values.) Calorie Content 1 2 3 4 Stem: Tens Leaf: Ones (b) Describe the calorie content of light beers. (Select all that apply.) There are no gaps in the data. A typical calorie content is 40 calories per 100 ml. There is a large gap in the data. A typical calorie content is 33 calories per 100 ml. The distribution is negatively skewed, with one peak. The distribution is roughly symmetric. The distribution is positively skewed, with one peak.
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Twenty-nine college students, identified as having a positive attitude about Mitt Romney as compared to Barack Obama in the 2012 presidential election, were asked to rate how trustworthy the face of Mitt Romney appeared, as represented in their mental image of Mitt Romney’s face. Ratings were on a scale of 0 to 7, with 0 being “not at all trustworthy” and 7 being “extremely trustworthy.” Here are the 29 ratings: 2.6 3.2 3.7 3.3 3.4 3.6 3.7 3.8 3.9 4.1 4.2 4.9 5.7 4.2 3.9 3.2 4.5 5.0 5.0 4.6 4.6 3.9 3.9 5.3 2.8 2.6 3.0 3.3 3.7 a 95% confidence interval for the mean rating. Is there significant evidence at the 5% level that the mean rating is greater than 3.5 (a neutral rating)?
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