A sample of 200 college freshmen was asked how many hours per week they spent playing video gaimes. The following frequency distribution presents the results. Number of Hours Frequency 1.0-7.9 21 8.0-14.9 40 15.0-21.9 42 22.0-28.9 29.0-35.9 36.0-42.9 43.0-49.9 50.0-56.9 57.0-63.9 64.0-70.9 Part 1 of 7

A sample of 200 college freshmen was asked how many hours per week they spent playing video gaimes. The following frequency distribution presents the results. Number of Hours Frequency 1.0-7.9 21 8.0-14.9 40 15.0-21.9 42 22.0-28.9 29.0-35.9 36.0-42.9 43.0-49.9 50.0-56.9 57.0-63.9 64.0-70.9 Part 1 of 7

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A community college is planning to expand its library. Forty students were asked how many times they visited the library during the previous semester. Their responses are given below. Construct a frequency distribution, letting each class have a width of 1. 0 1 2 4 5 6 8 9 0 1 3 4 5 7 8 9 0 2 3 4 5 7 8 9 0 2 3 5 6 7 9 10 1 2 4 5 6 8 9 10
Do not round. (c) What percentage of students play video games for less than 4 hr per week? 1% of the students play video games for less than 4 hr per week. (d) What percentage of students play video games for 1.0 or more hours per week? % of the students play video games for 1.0 or more hours per week.
Suppose that a polling company surveyed 600 people about how much time they spend watching television each day. The results of this survey were compiled and used to create this relative frequency histogram. Assume that all percentages shown in the histogram are whole numbers. Each of the bars in this histogram includes only the left endpoint of the class except for the last bar, which also includes the right endpoint. What percentage of respondents said that they watch television at least six hours per day? How many respondents said that they watch television between three and five hours per day?
A recent poll of 3,057 individuals asked: "What's the longest vacation you plan to take this summer?" The following relative frequency distribution summarizes the results. Response Relative Frequency A few Days 0.21 A few long weekends 0.18 One week 0.36 Two weeks 0.25 Construct the frequency distribution. How many people are going to take a one-week vacation this summer?
Among fatal plane crashes that occurred during the past 55 years, 348 were due to pilot error, 66 were due to other human error, 597 were due to weather, 104 were due to mechanical problems, and 148 were due to sabotage. Construct the relative frequency distribution. What is the most serious threat to aviation safety, and can anything be done about it?
The results of a survey of 150 students about the type of movie they prefer are shown in the two-way frequency table. Complete the table. How many boys were surveyed? Preferred Movie Type Gender Comedy Drama Science Fiction Total Girl 23 35 14 72 Boy 31 13 34 78 Total 54 48 48 150 boys were surveyed.
200 college freshmen were sampled and asked how many hours per week they had spent playing video games, this is the frequency distribution.
Among fatal plane crashes that occurred during the past 55 years, 553 were due to pilot error, 79 were due to other human error, 288 were due to weather, 533 were due to mechanical problems, and 111 were due to sabotage. g Construct the relative frequency distribution. What is the most serious threat to aviation safety, and can anything be done about it? --..- Complete the relative frequency distribution below. Relative Cause Frequency % Pilot error Other human error Weather % Mechanical problems % Sabotage % (Round to one decimal place as needed.)
At a carnival, one game involves guessing the number of candies in a glass bowl. The following data represents the guesses that people made during one hour at the carnival. Complete the frequency table for this data. 1382, 1435, 1347, 1162, 1259, 1058, 1471, 1403, 1316, 1163, 1271, 1346, 1467, 1304, 1271, 1438 Copy Data Determine the frequency of each class in the table shown.
A sample of 200 college freshmen was asked how many hours per week they spent playing video games. The following frequency distribution presents the results. Number of Hours Frequency 1.0-5.9 6.0-10.9 11.0-15.9 16.0-20.9 21.0-25.9 26.0-30.9 31.0-35.9 36.0-40.9 41.0-45.9 46.0-50.9 Part 1 of (a) How many classes are there? There are 10 classes. (b) What is the class width? x The class width is 43 Part 2 of 2 Do not round. (c) What percentage of students play video games for less than 46 hr per week? % of the students play video games for less than 46 hr per week. (d) What percentage of students play video games for 41 or more hours per week? % of the students play video games for 41 or more hours per week. 252222- X 28 31 44 28 18 12 9 X
Thirty randomly selected students were asked how many self- help books they have read in the last three years. Their responses are in the following frequency table.
A reviewer decides to interview patrons to see how they would rate a particular restaurant. The following table lists the responses from twenty-five patrons. Construct a frequency distribution for the data. Restaurant Ratings Five Stars One Star Two Stars Three Stars Four Stars Three Stars Four Stars Four Stars Five Stars Three Stars Five Stars Four Stars Five Stars Four Stars Five Stars One Star Three Stars Five Stars One Star One Star Five Stars Two Stars Four Stars Three Stars Five Stars