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 on your answers above , choose the right work from within the parentheses to fill in the blank
THE ABOVE RELATIONSHIP BETWEEN Y AND X IMPLIES THAT AS Y INCREASES X __________ ( INCREASES/DECREASES) , AND AS X DECREASES Y __________ (INCREASES/DECREASES)
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...
(10) Problem: Graph of a Linear Equation X = one family's annual income (measured in thousands of dollars) Y the family's annual spending (measured in thousands of dollars) Complete the table below using this equation: Y+ 0.80x) 40 30 20 Id 10 20 30 40 Graph this line on the axes above, with X on the horizontal axis and Y on the vertical axis-plot (draw in) each point separately and then "connect the dots" with a line. This graph shows...
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...
(8 points) Consider the linear equation y = bo +bix. a. In the equation, bo is A. the dependent variable B. the slope C. the y-intercept D. the independent variable b. In the equation, b, is A. the independent variable B. the slope C. the y-intercept D. the dependent variable C. Give the geometric interpretation of bo. It indicates A. how much the x-value on the straight line changes when the y-value increases by unit B. the x-value where the...
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...
Assume two variables Z and Y have the following relationship: Z=10, where Z is on the horizontal axis and Y on the vertical axis. The relationship between Z and Yis a positive relationship because Z is positive an independent relationship because as Y changes, Z remains constant at 10. O a positive relationship because as Y increases, so does Z. Previous Next
Question 14 The regression line equation between two variables is given as: y -2.03 x 19.8 The slope of the regression line is The y-intercept of the regression line is The value of y whenx = 3 is |
Question 14 The regression line equation between two variables is given as: y -2.03 x 19.8 The slope of the regression line is The y-intercept of the regression line is The value of y whenx = 3 is |
If two variables (x and y) have a very strong linear relationship, it can be inferred that a) y causes a change in x b) A third variable causes changes in x and y c) x causes a change in y d) There cannot be any causal relationship between x and y e) None of the above
The following information
regarding a dependent variable (Y in $1000) and an independent
variable (X) is provided.
Y
Dependent Variable
15
17
23
17
I. The least-squares estimate of the slope
equals:
II. The least-squares estimate of the intercept
equals:
III. If the independent variable increases by 2
units, the dependent variable is expected to
a. decrease by $300
b. decrease by $3000
c. decrease by $3
d. decrease by $2
e. none of the above
The letter corresponding...
The following information regarding a dependent variable (Y in
$1000) and an independent variable (X) is provided.
Y
Dependent Variable
15
17
23
17
I. The least-squares estimate of the slope
equals:
II. The least-squares estimate of the intercept
equals:
III. If the independent variable increases by 2
units, the dependent variable is expected to
a. decrease by $300
b. decrease by $3000
c. decrease by $3
d. decrease by $2
e. none of the above
The letter corresponding...