MODELLING RELATIONSHIPS:et us look again at the test results in mathematics and biology from Example 2.33Example 3424837323030Mathematics (x)252820282521Biology (y)202224a Find the mean of the mathematiCs test results.b Find the mean of the biology test results.* Hence predict the biology test result for someone who got 40 in their mathematics testCalculate both means using your GDCby eye.a i = 32.75b j = 25.25Plot the mean point (32.75, 25.25)on the scatter diagram. Draw a lineof best fit through the mean point sothat there is roughly an equal numberof points above and below the liney504540Do not forget to label the meanpoint, M.3530MBiology 2520-151010 15 20 25 30 35 40 45 50Mathematicsd 28Find the y-coordinate for the point atwhich the line of best fit crosses theline x = 40.Exercise 6EFor each set of data:ai Plot the points on a scatter diagram.ii Describe the type of correlation.10 11 12 13 14 15 16 17 18y 18 20 19 21 24 23 24 26 27jii Find the mean of x and the mean of y.iv Plot and label the mean noint

Given that Data x and y as follows: x y 10 18 11 20 12 19 13 21 14 24 15 23 16…

Answered: Exercise 6E For each set of data: a X…

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 table lists weights (pounds) and highway mileage amounts (mpg) for seven automobiles. Use the sample data to construct a scatterplot. Use the first variable for the x-axis. Based on the scatterplot, what do you conclude about a linear correlation? Weight (lb) Highway (mpg) Which scatterplot below shows the data? A. 40- 20- 2000 5000 2795 3225 3470 32 34 28 Weight (lb) B. 40- 20+ 2000 D 5000 Weight (lb) 4085 4155 2225 25 23 38 C. ● 20+ 2000 ● ● ● ● 5000 Weight (lb) Is there a linear relationship between weight and highway mileage? A. No, there appears to be no relationship. B. Yes, as the weight increases the highway mileage decreases. C. No, there appears to be a relationship, but it is not linear. D. Yes, as the weight increases the highway mileage increases. 40- 20- 2000 3440 29 5000 Weight (lb)
Distinguish the correlation shown in the graph below. Summarize why it is the chosen correlation. 30 Use the paperclip button below to attach files. Student can enter max 3000 characters 1- XD 2= DELL to B I U 25 de 2
Let x be the average number of employees in a group health insurance plan, and let y be the average administrative cost as a percentage of claims. x 3 7 15 32 75 y 40 35 30 26 18 (a) Make a scatter diagram of the data and visualize the line you think best fits the data. Flash Player version 10 or higher is required for this question. You can get Flash Player free from Adobe's website. (b) Would you say the correlation is low, moderate, or strong? positive or negative? strong and negative moderate and negative strong and positive low and negative low and positive moderate and positive (c) Use a calculator to verify that Σx = 132, Σx2 = 6932, Σy = 149, Σy2 = 4725, and Σxy = 2997. 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. Given our value of r, we cannot draw any conclusions for the behavior of y as x increases. Given our value of r, y should tend to…
UnattemptedQuestion 1Expand PreviousNext The data below was collected from manufacturer advertisements of their vehicles' horsepower and highway gas mileage (mpg.). Use this data to answer the following questions. x 158 250 340 350 390 190 220 y 33 28 15 17 11 35 42 1. Find the p-value to determine if there is a linear correlation between horsepower and highway gas mileage (mpg). If there is a linear correlation, write the correlation coefficient below if there is a linear correlation, write the regression equation below. Using the data shown above, predict the the highway gas mileage (mpg) for a car that has a horsepower of 225 If there is a linear correlation, what percentage of variation in highway gas mileage (mpg) can be explained by horsepower?
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Identify a likely choice for the correlation between X and Y in the graph below: Y G 0 -5 -10 -15 Pick ONE option 0.8 0.2 -0.1 O -0.7 2 80 4 X 6 It could be any of the above choices 8
The following shows a linear correlation between weight and height. Image result for scatter plot scatter plot positive histogram negative O pie chart random frequency polygon biased

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Exercise 6E For each set of data: a X 10 11 12 13 14 15 16 17 18 i Plot the points on a scatter diagram. ii Describe the type of correlation. y 18 20 19 21 24 23 24 26 27 iii Find the mean of x and the mean of y. iv Plot and label the mean noint -3