A positive straight line relationship: Choose one • 10 points A. Show no change in the...
A positive straight line relationship:
Choose one • 10 points
A. Show no change in the variables
B. Show that both variables increase in value
C. Shows that as the values of x increases, the values of y decreases
D. Slopes down
Homework Answers
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A positive straight line relationship:
Choose one • 10 points
A. Show no change in the...
A positive straight line relationship: Choose one • 10 points Does not show anything relevant to...
A positive straight line relationship: Choose one • 10 points Does not show anything relevant to either correlation or regression Shows the values of x increasing as the values of y decrease Shows no change amongst the variables None of the above
A) Assume a linear relationship between the variables Y and X , and that Y is...
A) Assume a linear relationship between the variables Y and X , and that Y is the variable measured on the vertical axis while X is the variable measured on the horizontal axis. A straight line describing this relationship has a y-axis intercept of 45 and a slope of 2. What is the equation for this line? B) Is the relationship between Y and X positive or negative? How can you tell just by looking at this equation? C) Based...
Outliers are usually? Easy to spot on a scatter plot Hard to spot on a scatter...
Outliers are usually? Easy to spot on a scatter plot Hard to spot on a scatter plot Not meant to be included on a scatter plot The last three data points to the right A positive straight line relationship: Shows that as the values of y increase, the values of x decrease Shows that as the values of x increases, the values of y decreases Shows that as the values of y decreases, the values of x remain constant Shows...
Most graphs in economics are based on a grid bordered on the left and below by...
Most graphs in economics are based on a grid bordered on the left and below by two perpendicular lines that show the values of two variables: x and y. One variable is called the x-variable and the other is called the y-variable. The solid horizontal line at the bottom of the graph is called the horizontal axis or x-axis, and values of the x-variable are measured along it. Similarly, the solid vertical line on the left of the graph is...
1. If an estimated regression line has a y-intercept of 10 and a slope of 4,...
1. If an estimated regression line has a y-intercept of 10 and a slope of 4, then when x = 2 the actual value ofy is: а. 18 b. 15 с. 14 d. unknown 2. Given the least squares regression line v = 5- 2x: a. the relationship between x and y is positive b. the relationship between x and y is negative. c. asx decreases, so does y. d. None of these choices. 3. A regression analysis between weight...
Equations: An equation with two variables, X and Y, is a simple way to show a...
Equations: An equation with two variables, X and Y, is a simple way to show a relationship given information about X, we can calculate the value (numerical amount) of Y. And every time calculate how much Y changes. For example, the equation Y 3(x) tells us that value of X. It means that every time X increases by 1, Y increases by 3. (substitute) the different values of X in the left-hand column of the table into the equation. of...
I need help answering these questions MULTIPLE CHOICE. Choose the one alternative that best completes the...
I need help answering these questions
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answer the question. 1) The purpose of a linear regression line is to A) calculate the correlation coefficient B) display the bivariate distribution of X and Y C) identify the mean of the X and Y variables D) predict one set of scores from another set 2) The general equation for a straight line is expressed as A) Y - X- B)...
[3-6] Correlation is a measure of the direction and strength of the linear (straight-line) associ...
Intro to Stats
Q1:
Q2:
[3-6] Correlation is a measure of the direction and strength of the linear (straight-line) association between two quantitative variables. The analysis of data from a study found that the scatter plot between two variables, x and y, appeared to show a straight-line relationship and the correlation (r) was calculated to be -0.84. This tells us that there is little reason to believe that the two variables have a linear association relationship all of the data...
A) Assume a linear relationship between the variables Y and X , and that Y is...
A) Assume a linear relationship between the variables Y and X , and that Y is the variable measured on the vertical axis while X is the variable measured on the horizontal axis. A straight line describing this relationship has a y-axis intercept of 10 and a slope of -1.25. What is the equation for this line? B) Is the relationship between Y and X positive or negative? How can you tell just by looking at this equation? C) Use...
3pts Question 1 Match each description with the most appropriate term or concept. A graph of...
3pts Question 1 Match each description with the most appropriate term or concept. A graph of a function. V[ Choose ] Movement Along a Curve Graph Positive Relationship Relationship A relationship between two variables in which they both increase or decrease in conjunction. Negative Relationship Y-axis A relationship in which one variable decreases as another increases. Shift in a Curve Variable X-axis A variable that is not directly represente on the graph changes, subsequently causing a change in the way...
1. If an estimated regression line has a y-intercept of 10 and a slope of 4, then when x = 2 the actual value ofy is: а. 18 b. 15 с. 14 d. unknown 2. Given the least squares regression line v = 5- 2x: a. the relationship between x and y is positive b. the relationship between x and y is negative. c. asx decreases, so does y. d. None of these choices. 3. A regression analysis between weight...
Equations: An equation with two variables, X and Y, is a simple way to show a relationship given information about X, we can calculate the value (numerical amount) of Y. And every time calculate how much Y changes. For example, the equation Y 3(x) tells us that value of X. It means that every time X increases by 1, Y increases by 3. (substitute) the different values of X in the left-hand column of the table into the equation. of...
I need help answering these questions
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answer the question. 1) The purpose of a linear regression line is to A) calculate the correlation coefficient B) display the bivariate distribution of X and Y C) identify the mean of the X and Y variables D) predict one set of scores from another set 2) The general equation for a straight line is expressed as A) Y - X- B)...
Intro to Stats
Q1:
Q2:
[3-6] Correlation is a measure of the direction and strength of the linear (straight-line) association between two quantitative variables. The analysis of data from a study found that the scatter plot between two variables, x and y, appeared to show a straight-line relationship and the correlation (r) was calculated to be -0.84. This tells us that there is little reason to believe that the two variables have a linear association relationship all of the data...
3pts Question 1 Match each description with the most appropriate term or concept. A graph of a function. V[ Choose ] Movement Along a Curve Graph Positive Relationship Relationship A relationship between two variables in which they both increase or decrease in conjunction. Negative Relationship Y-axis A relationship in which one variable decreases as another increases. Shift in a Curve Variable X-axis A variable that is not directly represente on the graph changes, subsequently causing a change in the way...
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