The data in the table is the number of absences for 5 students and their corresponding grade.Calculate the correlation coefficient, r. Round your answer to three decimal places.AnswerHow to enter your answer (opens in new window)qNumber of Absences 5 8Grade9078S3O&9 10 1174 62 588TablesKeySubmO

Answered: The data in the table is the number of…

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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The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 40 ounces and a standard deviation of 10 ounces. Use the Standard Deviation Rule, also known as the Empirical Rule. Suggestion: sketch the distribution in order to answer these questions. a) 99.7% of the widget weights lie between and b) What percentage of the widget weights lie between 20 and 70 ounces? c) What percentage of the widget weights lie above 30 ? Question Help: Video Message instructor %
Determine whether the data described below are qualitative or quantitative and explain why. The numbers of students in the graduating class at different high schools F4 Choose the correct answer below. O A. The data are quantitative because they consist of counts or measurements. OB. The data are quantitative because they don't measure or count anything. OC. The data are qualitative because they consist of counts or measurements. OD. The data are qualitative because they don't measure or count anything. KA $ 4 R F5 % 5 F6 T A 6 F7 V F8 & 7 11 DELL F9 * 00 8 F10 13 9 F11 O F12 PrtScr 3
A researcher surveyed 80 patients at a certain hospital. The histogram below gives the length of time patients waited to see a doctor at the hospital. The classes, in minutes, are 0 - 1.9, 2 - 3.9, etc., and the vertical axis represents the number of patients. 25 20 15 10 2 4 8. 10 wait time (minutes) (a) Use the histogram to determine the percent of patients that waited less than 6 minutes to see the doctor. (b) Determine the interval that contains the median wait time. **Include all decimal places** number of patients
he data set below shows the ages of a random sample of children under the age of 14 who live in an apartment uilding. dake a dot plot to display the data. Children's Ages 7,4,7,7,2, 10, 12, 8, 7, 4
K A university conducted a survey of 387 undergraduate students regarding satisfaction with student government. Results of the survey are shown in the table by class rank. Complete parts (a) through (d) below. Click the icon to view the table. 美 Data table Satisfied Neutral Not satisfied Total Freshman Sophomore Junior Senior 51 48 62 59 28 20 18 13 23 21 18 26 102 89 98 98 Total D₁ 220 79 88 387
Teddy is the manager for the touring rock band Hi Phone. For the band's recently ended summer tour, Teddy kept track of the attendance of each of the band's concerts. The histogram below summarizes the data. Use the histogram to answer each of the questions. Frequency (Number of concerts) (a) One class is the most frequent. How many concerts are in this class? 10- 9. 8- (b) According to the histogram, what is the total number of concerts? 6- 5- (c) What is the class width? 50 to 174 175 to 299 300 to 424 425 to 549 550 to 674 Number of people who attended Explanation Check O 2021 McGraw-Hill Education, All Rights Reserved. Terms of Use| Privacy Accessibility étv W 6 The It esc # $ % @ 5 6 7 8 1 2 3 4 Q W E R tab K L S D F G A caps lock N M Z C V shift ention command
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The data in the table is the number of absences for 5 students and their corresponding grade. Number of Absences 5 8 Grade 90 78 Calculate the coefficient of determination, R2. Round your answer to three decimal places. Answer How to enter your answer (opens in new window) 9 10 11 74 62 58
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The accompanying table lists the ages of acting award winners matched by the years in which the awards were won. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the P-value of r. Determine whether there is sufficient evidence to support a claim of linear correlation between the two variables. Should we expect that there would be a correlation? Use a significance level of a = 0.01. Click the icon to view the ages of the award winners. Construct a scatterplot. Choose the correct graph below. OA 70- 20- 20 70 Best Actress (years) B. 70- 20- 20 70 Best Actress (years) The linear correlation coefficient is r = (Round to three decimal places as needed.) 70- 20- 20 70 Best Actress (years) Q G D. 70- 20- 20 70 Best Actress (years)
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The data in the table is the number of absences for 5 students and their corresponding grade. Number of Absences 5 Grade 90 Calculate the correlation coefficient, r. Round your answer to three decimal places. Answer How to enter your answer (opens in new window) 8 9 10 11 78 74 62 58 Tables Key