In which scatter plot is r=0.9? (A) (B) (C) (D) (E) (F) The graph () shows a scatter plot with a correlation coefficient of r = 0.9. (Type A, B, C, D, E, or F.)

Q: Given: sum(x) =28, sum(y)=49 , sum(xsq)=124 ,sum(ysq)=353,sum(xy)=204  n=7   Find :  The linear…

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Q: A negative correlation means that as the values on X increase, the values on Y O increase decrease O…

A: The objective of the question is to understand the meaning of a negative correlation in statistics…

Q: tate, whether the variables described, have a positive correlation, a negative correlation, or no…

A: the variables are described Income and SAT scoresLength of a person's hair and how far they sit from…

Q: For n = 188 students, the correlation between y = fastest speed ever driven and x = number randomly…

A: The objective of the question is to interpret the correlation coefficient (r) between two variables,…

Q: The linear correlation coefficient is also known by another name. What is it?

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Q: The manager of a sports stadium analyzed the cost of the tickets (x) and the amount of money spent…

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Q: When is the correlation coefficient zero?     It is never zero.     when there is no linear…

A: The objective is to find when is the correlation coefficient zero.

Q: In the image below, which figure(s) show no distinct correlation?

A: Correlation is the measure of strength of linear relationship between two variables , e.g. X and Y ,…

Q: Give an example of a scatter plot with 5 points that has a correlation of r=0 on the axes below. How…

A: The number of observations is n = 5.

Q: From a regression equation r2= 0.39 and the slope = -2.8 What is the linear correlation coefficient…

A: Given information: The value of the slope is b=-2.8. The value of r2=0.39.

Q: Describe the relationship between x and y in a positive correlation and in a negative correlation.…

A: The positive correlation indicates that if x increases then y will also increase. This shows that x…

Q: A correlation of r = – 0.95 is stronger than r = + 0.70.

A: Given that  correlation r=-0.95 and r=0.70

Q: True or False: If the correlation coefficient from two variables X and Y , the number of shark…

A: From the known information, a change in one variable affects the change in another variable. Which…

Q: Plot the scatter plot defined by the points on the left. Then match it to the correct correlation…

A: Solution-: We want to plot defined by the points on the left . Then match it to the correct…

Q: In which scatter plot is r=0.3? (A) (D) (B) (E) The graph() shows a scatter plot with a correlation…

A: The correlation coefficient of r=0.3 represents a weak positive correlation. The correlation goes…

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.