The scatter plot shows the relationship between the number of minutes studying for a test (x) and the numberof mistakes made (y).The graph shows the scatterplot of the data and a fitted line.17161514131210용5-4-3-102030405060708090100 110 120Select True or False for each statement based on the scatter plot.True/FalseThere is a positive association between theamount of time studying for a test and thenumber of mistakes made.True FalseStudents who studied for a longer period oftime tended to make less mistakes.True FalseThere is a linear association between timeTrue Falsestudying and number of mistakes.

Solution: From the above graph. There is a positive association between the amount of time studying…

Answered: The scatter plot shows the relationship…

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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Explain the relationships among covariance, scatter plot, and correlation?
(a) Make a scatter diagram of the data and visualize the line you think best fits the data. Graph Layers After you add an object to the graph you can use Graph Layers to view and edit its properties. Fill No Solution WebAssign. Graphing Tool (b) Would you say the correlation is low, moderate, or strong? positive or negative? o low and positive O strong and negative o moderate and positive O low and negative o moderate and negative O strong and positive (c) Use a calculator to verify that Ex = 135, Ex² = 6783, Ey = 148, Ey2 = 4690, and Exy = 3045. Compute r. (Round your answer to three decimal places.) r = As x increases, does the value of r imply that y should tend to increase or decrease? Explain. O Given our value of r, y should tend to decrease as x increases. O Given our value of r, y should tend to increase as x increases. O Given our value of r, y should tend to remain constant as x increases. O Given our value of r, we cannot draw any conclusions for the behavior of y as x…
Plot the scatter plot defined by the points on the left. Then match it to the correct correlation value. {(1, 3), (1, 8), (5, 9), (8, 3), (8, 8)} {(1, 4), (3, 3), (5, 7), (7, 5), (9, 8)} r = 0.03 r = -1
Give an example of two variables that you would expect to have a correlation close to or equal to -1. Give an example of two variables that you would expect to have a correlation close to or equal to 0. Remember that survey question you wrote? Take the class responses to your survey as data related to the one variable of your question. Now, take the list of responses from the survey question that one of your classmates wrote. Write down both lists of data. (If one sample size happens to be different from the other, cut the larger sample size down to that of the smaller sample size.) Calculate the correlation between the two variables. Describe the linear relationship between these two variables. (data for number 3) How many cars have you had so far in your lifetime? 0,1,1,1,2,2,2,2,3,3,3,3,4,4,5,6,6,7,10. How many days per week do you exercise? 0,0,0,1,2,3,3,3,3,4,4,4,4,5,5,5,5,6,6,6
A manager wishes to determine the relationship between the number of years the manager's sales representatives have been with the company and their average monthly sales (in thousands of dollars). Calculate the linear correlation coefficient.Years with company, x: 6,7,14,11,12,19,7,5,15Sales, y: 21,23,68,52,55,51,38,45,110
The correlation between amount of sleep students get the night before the test and their performance shows that the less sleep they get the lower their grades. This would be an example of Group of answer choices no correlation a negative correlation a spurious correlation a positive correlation
PART D TO BE ANSWERED! Thank you!
A researcher finds a strong positive correlation between stress and health problems. In other words, the amount of stress you have and the amount of health problems you have move together in the same direction. From this finding, what can the researcher conclude? Group of answer choices Stress causes health problems Impossible to tell causation from a correlation Health problems cause stress Stress and health problems are both due to a poor financial situation
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