Related Statistics Q&A
Find answers to questions asked by students like you.
Q: The correlation coefficient betweem anxiaty and exam scorea of the students is -0.6 .so what is the…
A: Here correlation coefficient is negative. Therefore as exam score increases anxiaty decreases. 60℅…
Q: What does it mean when the correlation coefficient of variables A and B is -0.5?
A: The correlation coefficient of variables A and B is -0.5.
Q: A correlation coefficient of -0.95 means there is a ____________ between the two variables.…
A: Click to see the answer
Q: An r value of –0.9 indicates a strong negative correlation True or False
A: Correlation between two variables measure the strength and direction between two variables. It…
Q: The value obtained for the sum of products, SP, determines the sign (+/) for the correlation. true…
A: Solution:Correlation:The correlation is defined as the change in one variable affects the change in…
Q: Find the cross correlation function between the processes?
A: Click to see the answer
Q: Find the cross correlation function between the processes?
A: Click to see the answer
Q: correlation coefficient is r=
A: Correlation: Correlation is the extent of a linear relationship between two variables X and Y. To…
Q: A correlation of r = -1 indicates that as the X-variable increases the Y-variable decreases. True or…
A: The correlation coefficient is a numerical measure of the strength of the relationship between two…
Q: Because a partial correlation considers the influence of a third variable, it is possible to have a…
A: From the above question Because a partial correlation considers the influence of a third variable,…
Q: The correlation coefficient (r) between the number of volunteers x and the number of bags of trash…
A: Click to see the answer
Q: A correlation coefficient of .85 is co sidereal strong. True, false, neither or unable to determine
A: From the given figure we can see that the weak correlation coefficient comes around 0.5 to 0.7.
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: True or false The correlation coefficient of 0.5 is stronger than a correlation coefficient of -0.8
A: Correlation between two variables measure the strength and direction between two variables. It…
Q: If variable X remains constant as variable Y decreases, the correlation is said to be: zero negative…
A: We have to find correct answer.
Q: The coefficient of correlation between x and y is r = 0.59. Calculate the coefficient of…
A: It is given that, The coefficient of correlation between x and y is, r= 0.59
Q: Calculate the correlation coefficients rry, rrz, and ryz-
A: Here, x y x-x y-y (x-x)(y-y) (x-x)2 (y-y)2 1 0 -5 -2.45 12.25 25 6.0025 2 0 -4 -2.45 9.8 16…
Q: 3. If the correlation coefficient is -0.03, is its relationship considered to be strong positive,…
A: Correlation: The extent linear relation between the two variables is called as correlation. Positive…
Q: How can Spearman's Rank Correlation or Spearman's Product Moment Correlation Coefficient be applied…
A: First we need to define Spearman's rank correlation. Spearman's rank correlation: It is a non…
Q: When calculating a correlation coefficient between two continuous variables, the scales on which the…
A: Correlation: By correlation we mean the association or interdependence between two variables. If two…
Q: WHat is the linear correlation coefficient
A: The linear correlation coefficient is denoted by “r” and used to measure linear relationship between…
Q: Explain what it means when a correlation between the variables X and Y have anr2of 0.72.
A: The value of R2 is 0.72.
Q: Suppose a positive linear correlation is found between two quantities. Does this mean that one of…
A: The positive correlation is a relationship between two variables in which both variables move in…
Q: When interpreting a correlation coefficient of -0.92, you would say that there is a O strong…
A: The strength and direction of linear relationship between two variables is measured by correlation,…
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: Show that correlation coefficient lies between 1 and -1.
A: 6:we have to show that correlation coefficient is lies between 1 and -1correlation coefficent is…
Q: Two variables have a positive linear correlation . Does the dependent variable increase or decrease…
A: Click to see the answer
Q: The coefficient of correlation lies between -1 and +1. Symbolically, -1 <r<+1 or|r|s1
A: Click to see the answer
Q: (i) Find the auto-correlation of Y(t).
A: Click to see the answer
Q: Which value of r indicates a stronger correlation than +0.40 0.38 -0.30 -0.80 0
A: r (correlation coefficient): Measure of linear association between two variables.
Q: in the blank A linear correlation coefficient of 0.562 means
A: A linear correlation coefficient of 0.562 means Here we use the concept of correlation coefficient.…
Q: How would you interpret a correlation coefficient of -1? O Perfect negative correlation as one…
A: The Pearson correlation coefficient describes the relationship between two quantitative variables…
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: The linear correlation coefficient is also known by another name. What is it?
A: Click to see the answer
Q: The linear correlation coefficient is also known by another name. What is it?
A: he linear correlation coefficient is also known as Pearson Product Moment Correlation coefficient…
Q: Suppose Y1, Y2 and 3Y are not correlated variables, however, have the same standard deviation. Show…
A: Given Y1 , Y2, Y3 are independent of each other. They have same standard deviations
Q: Use the value of the linear correlation coefficient r to find the coefficient of determination and…
A: Click to see the answer
Q: f the Pearson correlation between X and Y is r = .50, then the regression equation predicts 25% of…
A: Obtain the value of the coefficient of determination. The value of the coefficient of…
Q: If correlation of X and Y is equal to 0, prove that correlation of x< and y may not be equal to 0.
A: Correlation: Correlation analysis is used to measure the strength of the association between…
Q: what does it mean to have a non-linear correlation? Give an example of one.
A: Correlation between two variables is said to be non linear if the ratio of change is not constant.…
Q: when is the covariance or coefficient of correlation zero?
A: here given covariance or correlation coefficient is zero