Homework Answers
If points are close together and points can be represented by a line which pass at minimum distance from each points ,then this is strongest linear correlation.
in given 3 plot ,first plot is like above . So this is strongest linear correlation.
2 nd and 3rd plot spread every where and not have strongest linear correlation.
so answer is first plot
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4:13 1 11 Exit Determine which plot shows the strongest linear correlation. o o O o...
4:13 7 11 Exit O 2 PM Question 20 5 pts The paired data below consist...
4:13 7 11 Exit O 2 PM Question 20 5 pts The paired data below consist of the test scores of 6 randomly selected students and the number of hours they studied for the test. Hours 5 10 4 6 10 9 Score 64 86 69 86 59 87 Find the value of the correlation coefficient r for this data. 0.224 0.678 -0.224 -0.678 Question 21 5 pts Determine which plot shows the strongest linear correlation.
Which of the following linear correlation coefficients indicates the strongest negative linear correlation? O A. -0.87...
Which of the following linear correlation coefficients indicates the strongest negative linear correlation? O A. -0.87 OB. 0.56 Осо OD. 0.91 O E. -0.78 A Moving to the next question prevents changes to this answer.
5. Variables Xand Yhave the strongest correlation in which scatter plot? Figure A . Figure B...
5. Variables Xand Yhave the strongest correlation in which scatter plot? Figure A . Figure B ф@h O Figure A O Figure B They are about the same.
For the following data (a) display the data in a scatter plot, (b) calculate the correlation...
For the following data (a) display the data in a scatter plot, (b) calculate the correlation coefficient r, and (c) make a conclusion about the type of correlation. The ages (in years) of 6 children and the number of words in their vocabulary Age, x 1. 2 3 4 5 6 Vocabulary size, y 500 450 1350 1750 2300 2300 (a) Choose the correct scatter plot below. A. B. c. D. 2350+.. 7 2350- 2350- Vocabulary Age Vocabulary Vocabulary ....
pts Compute the linear correlation coefficient between the two variables and determine whether a linear relationship...
pts Compute the linear correlation coefficient between the two variables and determine whether a linear relationship exists. х 1 8 -1 18 5 2 y 13 1 3 10 4 8 11 6 3 0 15 2 Or=-0.995; linear relation exists O r=-0.885; no linear relation exists O r=-0.995; no linear relationship exists O r=-0.885; linear relation exists Question 30 4 pts The table lists the drinking habits of a group of college students. If a student is chosen at...
8. Which of the correlation coefficients shown below indicates the strongest linear correlation? a) - 0.903...
8. Which of the correlation coefficients shown below indicates the strongest linear correlation? a) - 0.903 b) 0.720 c) -0.410 d) 0.203 9. A manager of the credit department for an oil company would like to determine whether the average monthly balance of credit card holders is equal to $75. An auditor selects a random sample of 20 accounts and finds that the average owed is $83.40 with a sample standard deviation of $23.65. If you were to conduct a...
Question 1 (10 points) Determine the domain of the following function and sketch a contour plot...
Question 1 (10 points) Determine the domain of the following function and sketch a contour plot (to be included in your work). f(x, y) = 1 – 4x° +y? — 2y all real numbers D = { (x, y) : 4х2 + (у — 1)? <1} o o oo D = {(x, y) : 4x° + (у — 1)? > 1}
Question 29 4 pts Compute the linear correlation coefficient between the two variables and determine whether...
Question 29 4 pts Compute the linear correlation coefficient between the two variables and determine whether a linear relationship exists. $ 4 X- 11 8 V 18 131 6 7 3 2 10 11 6 60 3 2 15 OP= -0.995;linear relation exists Ors.0.885; no linear relation exists O r.0.995. no linear relationship exists OP=-0.885: linear relation exists Question 30 4 pts The table lists the drinking habits of a group of college students. If a student is chosen at...
4:13 7 11 Exit Question 19 5 pts The line graph below shows the price of...
4:13 7 11 Exit Question 19 5 pts The line graph below shows the price of a stock over the course of the day. 10 9 8 Price of Stock in Dollars 2 9AM 10AM 11AM 12AM 1PM 2PM 3PM 4PM 5PM 6PM At what time was the stock price highest? 12 PM 9 AM 1 PM O 2 PM
1. construct a scatter plot for the variables 2. compute the value of the correlation coefficient...
1. construct a scatter plot for the variables 2. compute the value of the correlation coefficient 3. give an explanation of the type nof relationship that exists between the two variables. The explanation should be a short paragraph. In this paragraph inclue the following: *say whether the is a strong positiv elinear correlation, weak positive linear correlation, strong ngative linear correlation, weak negative correlation, or no linear correlation between the two variables. *explain how you can see this from the...
4:13 7 11 Exit O 2 PM Question 20 5 pts The paired data below consist of the test scores of 6 randomly selected students and the number of hours they studied for the test. Hours 5 10 4 6 10 9 Score 64 86 69 86 59 87 Find the value of the correlation coefficient r for this data. 0.224 0.678 -0.224 -0.678 Question 21 5 pts Determine which plot shows the strongest linear correlation.
Which of the following linear correlation coefficients indicates the strongest negative linear correlation? O A. -0.87 OB. 0.56 Осо OD. 0.91 O E. -0.78 A Moving to the next question prevents changes to this answer.
5. Variables Xand Yhave the strongest correlation in which scatter plot? Figure A . Figure B ф@h O Figure A O Figure B They are about the same.
For the following data (a) display the data in a scatter plot, (b) calculate the correlation coefficient r, and (c) make a conclusion about the type of correlation. The ages (in years) of 6 children and the number of words in their vocabulary Age, x 1. 2 3 4 5 6 Vocabulary size, y 500 450 1350 1750 2300 2300 (a) Choose the correct scatter plot below. A. B. c. D. 2350+.. 7 2350- 2350- Vocabulary Age Vocabulary Vocabulary ....
pts Compute the linear correlation coefficient between the two variables and determine whether a linear relationship exists. х 1 8 -1 18 5 2 y 13 1 3 10 4 8 11 6 3 0 15 2 Or=-0.995; linear relation exists O r=-0.885; no linear relation exists O r=-0.995; no linear relationship exists O r=-0.885; linear relation exists Question 30 4 pts The table lists the drinking habits of a group of college students. If a student is chosen at...
8. Which of the correlation coefficients shown below indicates the strongest linear correlation? a) - 0.903 b) 0.720 c) -0.410 d) 0.203 9. A manager of the credit department for an oil company would like to determine whether the average monthly balance of credit card holders is equal to $75. An auditor selects a random sample of 20 accounts and finds that the average owed is $83.40 with a sample standard deviation of $23.65. If you were to conduct a...
Question 1 (10 points) Determine the domain of the following function and sketch a contour plot (to be included in your work). f(x, y) = 1 – 4x° +y? — 2y all real numbers D = { (x, y) : 4х2 + (у — 1)? <1} o o oo D = {(x, y) : 4x° + (у — 1)? > 1}
Question 29 4 pts Compute the linear correlation coefficient between the two variables and determine whether a linear relationship exists. $ 4 X- 11 8 V 18 131 6 7 3 2 10 11 6 60 3 2 15 OP= -0.995;linear relation exists Ors.0.885; no linear relation exists O r.0.995. no linear relationship exists OP=-0.885: linear relation exists Question 30 4 pts The table lists the drinking habits of a group of college students. If a student is chosen at...
4:13 7 11 Exit Question 19 5 pts The line graph below shows the price of a stock over the course of the day. 10 9 8 Price of Stock in Dollars 2 9AM 10AM 11AM 12AM 1PM 2PM 3PM 4PM 5PM 6PM At what time was the stock price highest? 12 PM 9 AM 1 PM O 2 PM
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