10୫-10 -8 -62 468Consider the scatterplot given above. Which of the following could be the value of r?A. 0.921B. -0.967C. 0.813D. -0.245...X☑^Given that the regression line has a slope of 0.225 and a y-intercept of -0.333, find the slope-intercept equation of the regression line.y =Use the regression line to predict the y-value for the x-value of -2.456. (Round to three decimal places).^y=☐

Step 1: The correlation coefficient (r) is a measurement of strength and direction of linear…

Answered: 10 ୫- 10 -8 -6 2 4 6 8 Consider the…

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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An educator wants to see how the number of absences for a student in her class affects the student’s final grade by formulating the equation of the regression line. The data obtained from a sample are shown. Required: Slope of the regression line Only the final answer should be rounded-off to TWO decimal places.
What is the answer to part d
The accompanying data are the length (in centimeters) and girths (in centimeters) of 12 harbor seals. Find the equation of the regression line. Then construct a scatter plot of the data and draw the regression line. Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. If the x-value is not meaningful to predict the value of y, explain why not. (a)x= 140 cm (b)x= 172 cm (c) x = 164 cm (d) x = 158 cm Click the icon to view the table of lengths and girths. The equation of the regression line is y=x+7 (Round to two decimal places as needed.). 4
Part a: Make a scatter plot and determine which type of model best fits the data.Part b: Find the regression equation.Part c: Use the equation from Part b to determine y when x = 0.25
Give the equation of the regression line: -913.2969+0.4808years(y) a) Plug an actual x value into the equation and discuss the difference between the real y and the predicted yb) Discuss the domain of your datac) Include the scatterplot with line of best fit
please solve all parts as soon as possible
Different patients are randomly selected and measured for pulse rate and body temperature. Using technology with x representing the pulse rates and y representing temperatures, we find that the regression equation has a slope of -0.007 and a y-intercept of 95.6. a. What is the equation of the regression line? b. What does the symbol y represent? a. Choose the correct answer below and fill in the answer boxes to complete your choice. (Type integers or decimals. Do not round.) OA. The equation is Inx=+(y. OB. The equation is Iny=( OC. The equation is y=+x OD. The equation is x=+y b. The symbol y represents value of the actual the mean a predicted ▼ C
Ay 10- to 10--8-8- 40 *.*** Consider the scatterplot given above. Which of the following could be the value of r? O A. -0.236 OB. 0.213 C. 0.998 O D. 0.875 Given that the regression line has a slope of -0.942 and a y-intercept of -1.767, find the slope-intercept equation of the regression line. y =-0.942x+ 1.767 Use the regression line to predict the y-value for the x-value of -4.206. (Round to three decimal places). y = 2.195 I am Confide I am Val I am Stro
The table shows the total square footage (in billions) of retailing space at shopping centers and their sales (in billions of dollars) for 10 years. The equation of the regression line is y = 516.388x - 1699.161. Complete parts a and b. Total Square Footage, X Sales, y 4.9 5.1 5.2 5.4 5.6 5.7 ********** (a) Find the coefficient of determination and interpret the result. 5.9 5.8 (Round to three decimal places as needed.) How can the coefficient of determination be interpreted? 5.9 883.3 937.6 986.3 1059.5 1107.2 1200.9 1281.1 1340.8 1438.2 1536. 6.2 OA. The coefficient of determination is the fraction of the variation in sales that can be explained by the variation in total square footage. The remaining fraction of the variation is unexplained and is due to other factors or to sampling error. OB. The coefficient of determination is the fraction of the variation in sales that is unexplained and is due to other factors or sampling error. The remaining fraction of the variation is…
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H. Find the slope and y-intercept of each regression line. Then, determine if the correlation between the variables is positive or negative. (12 points) Regression Line Equation 1. Y = 1.751X – 21.722 Slope y-intercept Kind of Correlation 2. Y = -221.943X+65.434 3. Y = -82.455X –314.986 4. Y = 0.997X + 0.168
Different patients are randomly selected and measured for pulse rate and body temperature. Using technology with x representing the pulse rates and y representing temperatures, we find that the regression equation has a slope of-0.019 and a y-intercept of 99.6. a. What is the equation of the regression line? b. What does the symbol y represent? a. Choose the correct answer below and fill in the answer boxes to complete your choice. (Type integers or decimals. Do not round.) O A. The equation is x = O B. The equation is In y = x. O C. The equation is In x = O D. The equation is y = X. b. The symbol y represents value of Click to select and enter your answer(s). 3:45 PM P Type here to search 4/16/2021 12 ho num Ik 17 prt scr insert esc %23 24 & backspace 2 3 4 6. 7 81 6. tab W E R 2. enter A D F H. K 3. 00 %#M

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