Determine whether the scatter diagram indicates that a linear relation may exist between the two variables. If the relation is linear, determine whether it indicates a positive or negative associationbetween the variables.Use this information to answer the following.40ExplanatoryDo the two variables have a linear relationship?O A. The data points do not have a linear relationship because they do not lie mainly in a straight line.O B. The data points have a linear relationship because they lie mainly in a straight line.O C. The data points do not have a linear relationship because they lie mainly in a straight line.O D. The data points have a linear relationship because they do not lie mainly in a straight line.Do the two variables have a positive or a negative association?O A. The two variables have a negative association.O B. The two variables have a positive association.O C. None of the aboveO Time Remaining: 03:23:18NextMacBook ProG Search or type URLesc&%3Ddelete23678134PYQWEtabJKLreturnSDFcaps lockくshiCVB.. .-つエ

If the data points in the Scatterplot are in a straight line, it indicates the relationship between…

Answered: Determine whether the scatter diagram…

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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Without doing any calculations, what type of a relationship exists between the pairs of observations? X Y 2 128 20 72 3 144 18 81 1 142
We'll look at the Galton data frame from the mosaicData package: data(Galton)View(Galton)help(Galton) Here's a scatterplot of the heights of the mothers and the heights of their children: ***(YOU MUST CREATE THE SCATTERPLOT FROM INFO GIVEN) We would like to use the data to predict the height of a child from the height of her mother. As described in class and in the Course Notes, use the predict() function to predict the height of a child (the time of Galtons' study) if the child's mother was known to be 64 inches tall. Record your answer (without units) as a decimal number, correct to at least two decimal places. _______________________
2. Graph the following points, and draw in the line of best fit. Comment on the fit of this line, and state if the correlation is positive or negative. 3 Y 1 2 2 3 4 4 8 5 9 6 13 W 7 17
Relationships between two or more variables can be identified using crosstabulation. Select one: O True O False
What is the interpretation of r= - 0.12? O There is a weak negative linear relationship between X and Y O There is a weak positive linear relationship between X and Y There is a strong negative linear relationship between X and Y O There is a strong positive linear relationship between X and Y
Complete parts (a) through (h) for the data below. 40 50 84 60 70 80 53 Que 78 73 67 (a) By hand, draw a scatter diagram treating x as the explanatory variable and y as the response variable. Choose the correct scatter diagram below. OA. Ax 90- OB. OC. Ay 90- 100- 100 (b) Find the equation of the line containing the points (50,78) and (80,53). y x+ (D (Type integers or simplified fractions) Click to select your answer(s) 9 Type here to search 427 PM 3/14/2021 Panasonic CF-54 TOUGHBOOK CDSS-4853 PASS AIP F7 F8 F9 F10 F11 F12 Num Lock PrtSc Scrol Pause F3 F4 F5 F6 SysRa Lok Break F1 F2 Esc Back space % & Home %24 4. 23 1 A1 2 42 T Y W 15 日 [ Tab K Enter F 3 田 + II O.... 日 * 00
For each problem, select the best response. (a) In a scatterplot of the average price of a barrel of oil and the average retail price of a gallon of gasoline, you expect to see A. a positive association. B. very little association. C. a negative association. D. None of the above. (b) What are all the values that a correlation r can possibly take? A. -1 ≤ ≤ r ≤ ≤ 1 B. r ≥ ≥ 0 C. 0 ≤ ≤ r ≤ ≤ 1 D. None of the above. (c) You have data for many years on the average price of a barrel of oil and the average retail price of a gallon of unleaded regular gasoline. When you make a scatterplot, the explanatory variable on the x -axis A. is the price of oil. B. is the price of gasoline. C. can be either oil price or gasoline price. D. None of the above
Given the following set of five ordered pairs, the correlation r equals ______. a.0.3 b.0.6 c.0.9
do the following a.) construct a scatter plot. b.) determine the direction of the straight line that the data points seem to follow. c.) determine the strength of correlation between the two variables depicted in each scatter plot. 1. x 1 2 3 4 5 6 7 8 y 30 50 55 70 35 40 75 45
Suppose the correlation between variables x and y isr = – 1. Also suppose that the data contains the points (6, 14) and (2, 18). Finally, suppose that the x-values in the data set are: æ 2 3 5 6 8 Make a scatterplot of this data set. 20+ 19 18 17 16 15 14 13 12 10 8 6 6
The following statement contains an error. Choose the statement that best explains the error. "The correlation between shoe size and height is 0.87 inches" A. Correlation requires that both of the variables be categorical B. When stating the correlation coefficient, one must state whether it is a positive or negative relationship C. This statement does not tell us whether or not shoe size is correlated with height D. When reporting correlation, one does not report units because correlation has no units E. There is no error in this statement
the data set shows the high school student grade . it have their mid and final test results. we wish to determine if there is a relationship between the two. 1 77 65 2 83 90 3 79 67 4 88 85 5 76 62 6 66 80 7 76 74 8 95 93 9 65 59 10 91 86 11 80 52 12 87 82 13 86 54 14 62 71 15 92 86 16 76 88 17 68 82 18 92 95 19 80 77 20 59 72 21 68 84 22 71 75 23 62 73 24 67 55 25 76 94 26 72 79 27 99 89 28 57 52 29 81 78 30 72 83 31 76 69 32 94 98 33 71 94 34 71 81 35 71 83 36 95 96 37 73 60 38 88 85 39 94 97 40 84 88 41 59 71 42 67 92 43 97 85 44 84 87 45 87 99 46 92 98 47 77 91 48 84 93 49 92 79 50 75 81 51 95 99 52 80 73 53 62 79 54 70 76 55 87 91 56 88 95 what is the equiation for the linear regression model? Final grade= ___ + ___ * Mid term grade (round to three decimal places) If cammy scores 73 on the midterm, her predicted final exam grade would be _______

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