4. Put the r-values in order from the weakest to strongest correlation. r = -0.90 r = 0.050 r= 0.80 r = -0.72 r= 0.45 r= -0.88 r= 0.97

Q: 3. Explain the difference between a correlation of r = .5, and r = -.5.

A: Explain the difference between a correlation of r = .5, and r = -.5. The difference between the…

Q: 2. Sketch the scatter plot that shows: a. Positive correlation b. Negative correlation' c. Zero…

A: Scatter plot is the graphical representation of the relationship between two variables of a…

Q: 44. A researcher measures driving distance from college and weekly cost of gas for a group of…

A: We have given that the statement about to the correlation coefficient. Here, need to find out the…

Q: Use the data to compute a correlation coefficient, r, to determine the correlation between claims…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: b) Compute the Correlation Coefficient for your line from (a). c) Using your answer to (b), Is there…

A: 2) a) The slope is, b=n∑xy-∑x∑yn∑x2-∑x2=5×33974-409×4135×33643-4092=953934=1.020343≈1.0203 The…

Q: Choose the most likely correlation value for this scatterplot: Or= 0.436 Or- 0.100 Or= -0.897 Or…

A: See the handwritten solution

Q: The given data represent the total compensation for 10 randomly selected CEOs and their​ company's…

A: Let the fitted line be yi^=a^+b^xi.Then,b^=n∑i=1nxiyi-∑i=1nxi∑i=1nyin∑i=1nxi2-∑i=1nxi2 and…

Q: Calculate the coefficient of correlation between x and y. 4 6 8 y 5 9. 13 17

A:

Q: What assumptions are required for a correlation to be a valid description of the relation between X…

A: Assumptions for correlation: Correlation quantifies the extent to which two quantitative variables.

Q: Suppose the correlation value between two variables is calculated to be 0.818. How would you…

A: Concept: Correlation can be defined as the linear relationship between the two quantitative…

Q: The correlation between x and y is

A: Answer: Here, option A is right. Approximately, 0.50 answeris correct.

Q: Which of the following pairs of variables is likely to have a positive correlation? Check all that…

A: Correlation between two variables measure the strength and direction between two variables. It…

Q: If the coefficient of correlation between two variables is -0.93, then the percentage of variation…

A: There are two variables in this case. This is simple linear model. The value of coefficient of…

Q: A study of new cars finds that the correlation between the weight of cars (pounds) and their city…

A:

Q: Imagine that there are only two points in a scatterplot. 7. How do you position these points so that…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: If the coefficient of correlation between two variables is -0.88, then the percentage of variation…

A: We have given that,  Correlation coefficient (r) = -0.88 Then,  We will find the percentage of…

Q: Suppose that for a set of (x,y) data, r = 0.36. Find the linear correlation coefficient. Do not…

A: Here the coefficient of determination is given as 0.36, from this value we need to compute the value…

Q: A teacher records the scores on a midterm quiz and on the final exam for 8 of her students. She…

A: Given that a teacher records the scores on a midterm quiz and on the final exam for 8 of her…

Q: what is indicated by a positive value for a correlation

A: Positive value for a correlation indicates that increase in X tend to be accompanied by increase in…

Q: which one of the following options will be your best guess for the correlation (r) between calories…

A:

Q: n=13, sum x=120, sum y=340, sum xy=3970, Sigma x^ 2 =1320, Sigma y^ 2 =255555 Calculate the linear…

A: Given n=13, sum x=120, sum y=340, sum xy=3970, Sigma x^ 2 =1320, Sigma y^ 2 =255555

Q: Provide an appropriate response Given the length of a Human’s femur, x, and the length of a human’s…

A: Positive correlation When there is an increase in one variable then other variable also increase.…

Q: When interpreting a correlation coefficient of 0.34, you would say that there is a linear…

A: Based on the r value, we can consider whether the linear relationship between two variables are weak…

Q: -7. If (X,Y) ~ LOGS(@), then what is the correlation between X and Y?

A: The correlation of X and Y is the normalized covariance . corr(x,y) = cov(x,y)/σxσy . The…

Q: Which of the following values is most likely to represent the correlation coefficient for the data…

A: The objective is to define the appropriate value of r (i.e., the correlation coefficient; -1≤r≤1)…

Q: . Describe the pattern of data that is observed when there is a strong negative correlation between…

A: If two random variables are strongly correlated then we can say that they are linearly related to…

Q: f I conclude that as temperature increases, the number of snowboard sales decrease, this would be a…

A: The statement is As temperature increases, the number of snowboard sales decrease

Q: What is the value of the correlation coefficient for the data in the table? y 2696 1198 2099 11 3793…

A: Given Correlation coefficient (r) Correct option is B

Q: Is the correlation significant between the pair of variables with the weakest correlation? Yes, at p…

A: Consider the level of significance is 0.05.

Q: Choose the most likely correlation value for this scatterplot: Or= 0.436 Or = 0.100 Or= -0.897 Or=…

A: Correlation between two variables measure the strength and direction between two variables. It…

Q: Which of the following values could not represent a correlation coefficient? r= 0.98 r = 1.09 r =…

A: The value of correlation coefficient lies between -1 and +1.

Q: A study was done asking people how much money they spend per month on their natural gas bill and how…

A: Solution:  Given information: The correlation coefficient r= 0.94  The P value for the correlation…

Q: 9) Determine which plot shows the strongest linear correlation. A) УЛ B) D) C) УЛ УЛ

A: Correlation is the measure of linear association between two variables. The variables are said to be…

Q: A zero correlation bewteen X and Y is least likely to occur if?

A: The strength and direction of linear relationship between two variables is measured by correlation,…

Q: If r= +1, the correlation is said to be a O Perfect negative correlation O Perfect positive…

A:

Q: If the correlation coefficient is 0.930, what is the unexplained variation

A:

Q: Is the correlation significant between the pair of variables with the weakest correlation? Yes, at p…

A: Consider the level of significance is 0.05.

Q: Which of the following pairs of variables is likely to have a positive correlation? Check all that…

A: Positive Correlation means, increase in value of one variable increases the value of other

Q: 10. Describe the pattern of data that is observed when there is a strong negative correlation…

A: It is an important part of statistics. It is widely used.

Q: As a result of the research, it was concluded that there is no relationship between the two…

A: Correlation coefficient : Correlation coefficient  is used to measures the association or linear…

Q: Choose the most likely correlation value for this scatterplot: r = 0.436 Ir = 0.100 r= -0.897 r =…

A: Correlation between two variables measure the strength and direction between two variables. It…

Q: Which plot indicates a correlation of 0.7? 150 10

A: There are two types of correlation: positive correlation and negative correlation Two variables are…

Q: Which data has. A stronger linear correlation? Data 1 with an r= 0.7 or data 2 with an r= -0.8? Why?

A:

Q: Explain Graphically by drawing hypothetical disgrams when the coefficient of correlation between two…

A: The degree or extent to which two variables are linearly related or associated, is called the…

Q: Give your own example of a positive AND a negative correlation.

A: A positive correlation is a relationship between two variables where if one variable increases, the…

Q: State whether the following statement is true or false: “The correlation between height and weight…

A:

Q: Draw the scatterplot that shows: a. Positive correlation b. Negative correlation

A: Scatterplot for Positive correlation: Positive correlation: It exists when two variables move in…

Q: If the correlation is 0, then there is no relationship between the two variables.

A:

Q: If the correlation coefficient obtained from data pairs of variables X and Y is 0.98 the strength…

A: correlation coefficient The correlation coefficient r measures the direction and strength of a…