A national survey asked people, "How often do you eat out for dinner, instead of at home?" The frequencies were asfollows.(a) Construct a relative frequency distribution of the data. Express each relative frequency as a decimal.RelativeResponseFrequency OResponseFrequencyNever423NeverRarely366RarelySometimes941SometimesMost of the time375Most of the timeAlways95Always(Round to three decimal places as needed.(b) What percentage of respondents answered "Always"?(Round to one decimal place as needed.)(c) What percentage of respondents answered "Never" or "Rarely"?(Round to one decimal place as needed.) те as(c) What percentage of respondents answered "Never" or "Rarely"?(Round to one decimal place as needed.)(d) Construct a frequency bar graph.O A.1000-800-600-400-200-N.RM1000-800-600-400-200-NRC.1000-800600-400-200-RB.

Answered: Ilational suivey asked people, "How…

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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I can't understand why the data is the percentage of surveyed parents.
. State the interval estimate that contains more possible values of the population mean (precision) for a 90% CI or a 95% CI for the same data.
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Q. Calculate mean from the following by applying direct method: Group of item : Frequency : 0-5 5-10 10-15 15-20 20-25 5 7 8 6 4
HOTSPOT LABEL The times (in seconds) of 8 runners for the 100-yard dash are recorded and used to determine the following calculations. Mean: 11.8 Median: 12.2 CO Mode: 12.5 Range: 3.2 The timekeeper had difficulties with the stopwatch and did not start the time until the runners had been running for 1.5 seconds. What would these calcula- tions be if this 1.5 seconds were added to each runner's 100-yard dash time? . Press each hotspot. Label the corresponding number below with the requested value. ▶ C «» Press to hear a reminder or hint for this problem. IQR: 2.4 100 All Charge
The frequency table below gives the frequency of exam scores rounded to the nearest 5%. Find the mean and round to one decimal place as needed. Number Percentages of on an Exam 65 70 75 80 85 90 95 100 Students 4 8 7 11 9 7 2 2
In a city with three high schools, all the ninth graders took a Standardized Test, with these results: Number of ninth graders (Frequency) Mean Test Score High School Glenwood 82 262 Central 92 311 Lincoln 67 168 The city's PR manager, who never took statistics, claimed the mean score of all ninth graders in the city was the average of 82, 92, and 67, whic incorrect. What is the mean score for all ninth graders in the city? Round to one decimal place 80.3. Of course, that is Mean of all ninth grader's scores *
Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 52.5 degrees. Low Temperature (o F) 40 - 44 45 - 49 50 - 54 55 - 59 60 – 64 D Frequency 2 9. ... The mean of the frequency distribution is degrees. (Round to the nearest tenth as needed.) Which of the following best describes the relationship between the computed mean and the actual mean? O A. The computed mean is close to the actual mean because the difference between the means is more than 5% of the actual mean. B. The computed mean is not close to the actual mean because the difference between the means is less than 5% of the actual mean. C. The computed mean is not close to the actual mean because the difference between the means is more than 5% of the actual mean. D. The computed mean is close to the actual mean because the difference between the means is less than 5% of the actual mean.
In a student survey, fifty-two part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below: Please round your answer to 4 decimal places for the Relative Frequency if possible. # of Courses Frequency Relative Frequency Cumulative Frequency 1 19 19 2 0.2885 3 18 0.3462 52 What percent of students take exactly two courses?_______ %

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