Homework Answers
Slope of the curve is (72-42)/(9-7)
= 30/2 = 15
Coordinates of point A = (7,42)
For point B = (9,72)
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The graph shows a relationship between two variables x and y What is the slope of...
Question Help between two variables, x and y, that is The graph shows the r described...
Question Help between two variables, x and y, that is The graph shows the r described by the equation y a bx The value of a is not include a plus sign 4 5 6 8 9 10 11 12
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...
A set of bivariate data consists of these measurements on two variables, x and y: 2...
A set of bivariate data consists of these measurements on two variables, x and y: 2 4 4 6 8 4 7 6 (a) Make a scatterplot. Comment on the form, direction, and strength of the relationship. The relationship appears to be linear, positive, and fairly weak. The relationship appears to be linear, negative, and fairly strong. The relationship appears to be linear, positive, and fairly strong. The relationship appears to be linear, negative, and fairly weak. ● The relationship...
Consider a two-dimensional scatterplot representing the relationship between two continuous variables. If the correlation coefficient is...
Consider a two-dimensional scatterplot representing the relationship between two continuous variables. If the correlation coefficient is -1, then: a. All points lie in a straight line with a slope of -1. b. All points lie in a straight line with an unknown negative slope. c. All points do not lie in a straight line but the best fitting regression line has a slope of -1. d. There is a strong positive relationship between the two variables.
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...
Question #1 Explain what is meant by a positive relationship between two variables and a negative...
Question #1 Explain what is meant by a positive relationship between two variables and a negative relationship between two variables. Describe examples of situations in which one would expect to find a positive relationship and when one would expect to find a negative relationship. Can one assign direction when both variables in a table are dichotomous?
study of 360 women who lived in certain country found that there was roughly a linear relationship between y= life-leng...
study of 360 women who lived in certain country found that there was roughly a linear relationship between y= life-length (in years) and x = number of sons the woman had, with a slope estimate of -0.83 (se 0.48). Answer parts a-c. Interpret the sign of the slope. Is the effect of having more boys good, or bad? O A. The positive sign of the slope indicates that as the number of boys increases, the life-length increases, so having more...
Does there appear to be a relationship between the variables? A Yes, there appears to be a positi...
Can you please explain step by step on how to do it in excel
Does there appear to be a relationship between the variables? A Yes, there appears to be a positive relationship between the variables. OB. Yes, there appears to be a negative relationship between the variables ° C There appears to be a positive relationship between the variables at low levels of a country's trade share, but a negative relationship at high levels of a country's trade share....
The owner of Maumee Motors wants to study the relationship between the age of a car...
The owner of Maumee Motors wants to study the relationship between the age of a car and its selling price. Listed below is a random sample of 12 used cars sold at Maumee Motors during the last year: Car Age (years) Selling Price ($ thousands) Car Age (years) Selling Price ($ thousands) 1 5 $3.2 7 5 $6.2 2 5 6.7 8 4 7.5 3 6 5.4 9 2 7.1 4 14 5.6 10 15 8.2 5 10 3.6 11...
By what percentage did real GDP change in 2017? An economy produces only two final goods:...
By what percentage did real GDP change in 2017?
An economy produces only two final goods: fish and berries. The table shows the quantities produced and the prices of these final goods in 2016 and 2017. Price The base year is 2016. In 2016 Item Fish Berries Quantity 100 50 $2 $6 By what percentage did real GDP change in 2017? In 2017, real GDP changed by percent. >>> Answer to 1 decimal place. >>> If your answer is negative,...
Question Help between two variables, x and y, that is The graph shows the r described by the equation y a bx The value of a is not include a plus sign 4 5 6 8 9 10 11 12
A set of bivariate data consists of these measurements on two variables, x and y: 2 4 4 6 8 4 7 6 (a) Make a scatterplot. Comment on the form, direction, and strength of the relationship. The relationship appears to be linear, positive, and fairly weak. The relationship appears to be linear, negative, and fairly strong. The relationship appears to be linear, positive, and fairly strong. The relationship appears to be linear, negative, and fairly weak. ● The relationship...
Question #1 Explain what is meant by a positive relationship between two variables and a negative relationship between two variables. Describe examples of situations in which one would expect to find a positive relationship and when one would expect to find a negative relationship. Can one assign direction when both variables in a table are dichotomous?
study of 360 women who lived in certain country found that there was roughly a linear relationship between y= life-length (in years) and x = number of sons the woman had, with a slope estimate of -0.83 (se 0.48). Answer parts a-c. Interpret the sign of the slope. Is the effect of having more boys good, or bad? O A. The positive sign of the slope indicates that as the number of boys increases, the life-length increases, so having more...
Can you please explain step by step on how to do it in excel
Does there appear to be a relationship between the variables? A Yes, there appears to be a positive relationship between the variables. OB. Yes, there appears to be a negative relationship between the variables ° C There appears to be a positive relationship between the variables at low levels of a country's trade share, but a negative relationship at high levels of a country's trade share....
By what percentage did real GDP change in 2017?
An economy produces only two final goods: fish and berries. The table shows the quantities produced and the prices of these final goods in 2016 and 2017. Price The base year is 2016. In 2016 Item Fish Berries Quantity 100 50 $2 $6 By what percentage did real GDP change in 2017? In 2017, real GDP changed by percent. >>> Answer to 1 decimal place. >>> If your answer is negative,...
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