What is the correlation between X and Y? a) 1.0 b) -1.0 c) 0.0 d) -0.5

Q: If a relationship has a strong, negative, linear correlation, the correlation coefficient that would…

A: A negative correlation indicates two variables that tend to move in opposite directions. A…

Q: The square of the correlation coefficient is called the a)variation b)coefficient of determination…

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Q: Which of the following correlation coefficients (r) shows the strongest relationship? o 0.10 o…

A: Higher the magnitude (ignoring the sign) of correlation coefficient, stronger the relationship.

Q: Use the computing formula to calculate the coefficient of correlation for the vending machine data…

A:

Q: Which of the following sets of correlations correctly shows the highest to lowest degree of…

A: Given We have given the set of correlation and we need to find which set shows the highest to lowest…

Q: 0.3. Calculate co-efficient of correlation between x & y by direct method, when x= 78 89 97 69 59 79…

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Q: If the correlation coefficient is -1, then the relation is a ___

A: here use basic of correlation coefficient

Q: The table shows the number of regular-season NFL football games won by the winner of the Super Bowl…

A: The table given in the problem represents the games won by super bowl winner with different years.…

Q: a) negative correlation b) positive correlation c) no correlation Determine the linear correlation…

A: 4. Identify the correct option to obtain the linear correlation coefficient. The correct option is…

Q: 25: From the table below, 38 44 50 50 50 53 55 59 60 64 73 74 77 70 58 77 87 82 75 60 72 92 104 126…

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Q: f there is an autocorrelation problem in the Y,-A+BX, +BX, +..+ AXu equation, which of the following…

A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…

Q: A correlation cannot have the value ?  A) 1.5 B)0.0 C)-0.75 D)0.99 E)0.4

A:

Q: Y    X 7    6 9    5 10  7 6    5 5    2 8    4 From the table above: a) Measure and interpret the…

A: The data table is, X Y 6 7 5 9 7 10 5 6 2 5 4 8

Q: Which correlation is the weakest? a) r = 0.8 b) r = -0.8 c) r = 0.3 d) r = -0.5

A: We have given the following correlation  a) r = 0.8 b) r = -0.8 c) r = 0.3 d) r = -0.5

Q: The value of correlation coefficient between variables X and Y lies between: A. 1 and 2 B. 0 and 1…

A: We have to identify correct option.

Q: What correlation can be observed between x and y in the figure?

A: Correlation is a measure of association between two continuous variables.

Q: Which of the following statements is/are true for a negative correlation? i)   The slope of the…

A: The term Correlation is used to measure how strong the linear relationship between two variables is.…

Q: Let the coefficient of correlation of two variables X and Y be larger than zero. What will be the…

A: GIven, The coefficient of correlation of two variables X and Y be larger than zero.             To…

Q: If the variable “Attractiveness” increases and the variable “Weight” appears to go down, we would…

A: Correlation: The extent linear relation between the two variables is called correlation. Positive…

Q: Two variables have a correlation coefficient of -0.09. The coefficient of determination could be a)…

A: Given : Correlation coefficient (r) = -0.09

Q: Assume that the computed correlation between x and y is -0.13. Suppose we define new variable s = -x…

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Q: Find the value of the linear correlation coefficient r. 19.3 23.4 10.3 17.7 23.2 3 3 0.056 -0.236…

A: Given that    X Y X \cdot YX⋅Y X^2X2 Y^2Y2   19.3 3 57.9 372.49 9   23.4 3 70.2 547.56 9…

Q: Show your work in the box below. Given the table below, find: a) The correlation coefficient r. b)…

A: We have given data areXY15394751713

Q: What is the correlation coefficient of the following data set? a -.9113 b. .9113 c .9546 d.…

A: From the provided information,The linear equation is y = -18.329x + 112.3R2 = 0.9113

Q: 9. Tell whether the correlation coefficient would be closest to -1, 0 or 1. a. b. 150 150 150 100…

A: Given : Three diagram :

Q: Let x be the average number of employees in a group health insurance plan, and let y be the average…

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

Q: Find the correlation coefficient. X Y 5 - 10 23 13 27 14 30 а) 0.96 в) 0.89 NS) 0.98 D) 0.95

A: The independent variable is X. The dependent variable is Y. Given data: x y 10 23 13 27 14…

Q: 2. Calculate Karl Pearsons co-efficient of correlation from the students. n Inches: x = 62 58 65 y =…

A: Given: The values are as follows x y 62 50 58 43 65 51 63 52 56 48 59 51 60 53…

Q: Calculate the coefficient of correlation betwe . and y from the following data : X 1 2 4 6. 7 Y 2 4…

A: Given data, X Y X*Y X*X Y*Y 1 2 2 1 4 2 4 8 4 16 3 5 15 9 25 4 3 12 16 9 5 8 40 25 64…

Q: In a regression context, under what situation is the predicted value for Y equal to the mean of Y?…

A: We need to solve In a regression context, under what situation is the predicted value for Y equal to…

Correlation

Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

Linear Correlation

A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related. 

Regression Analysis

Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.