Find the correlation

Q: What is the strength/magnitude of the correlation?

A: Consider, Correlation coefficient=0.953.

Q: React on the statement, “Correlation deals with association but not causality”

A: From the given information, Correlation coefficient is the measure of linear relationship between…

Q: The correlation between a person's height and weight is positive. True False

A: To identify the given statement is true or false.

Q: From the calculation that you obtained, interpret the correlation coefficient of the data found in…

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Q: Plot the data on a scatter diagram. Does it appear there is a relationship between atmospheric…

A: Given: Sample size, n=12 Day Temp Sales 1 79 147 2 76 143 3 78 147 4 84 168 5 90 206…

Q: Determine from your graph if the data shows a correlation. What would you expect the correlation…

A: Correlation: Correlation analysis is used to measure the strength of the association between…

Q: ->

A: Given query is to estimate the correlation of the scatter plot.

Q: initial ideas about Correlation

A: Correlation refers to the relationship between two variables.

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

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Q: What does it mean when the correlation coefficient of variables A and B is -0.5? Explain.

A: Given that the correlation coefficient of variables A and B is -0.5.

Q: Calculate the coefficient of correlation between x and y. 2 4 y 5 9. 13 17

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Q: Find the coefficient of correlation between X + Y and X-Y.

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Q: An environmentalist wants to determine the relationship between the number of fires, in thous…

A: Correlation value: r=0.769

Q: State each case whether you would expect a positive correlation, a negative, or no correlation.

A: Here use definition of correlation  Positive correlation: as independent variable increases  ,…

Q: Calculate the correlation coefficient and interpret the result.

A: Answer:

Q: Find the Covariance and the Correlation between X and Y

A: Given: n=5 The covariance and correlation are calculated as…

Q: Describe Correlation?

A: Correlation: Correlation it is a statistical measure, it measure the linear relationship between two…

Q: Determine whether each statement is true or false, and explain why A correlation coefficient of zero…

A: Correlation coefficients are indicators of the strength of the linear relationship between two…

Q: The manager of a DVD rental store analyzed the number of DVD rentals (y) to the number of weeks the…

A: Correlation: Correlation says about if two variables are related to each other or there exists no…

Q: Explain why the positive and negative linear correlation is important?

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Q: A correlation coefficient of 0.5 does not mean that 50% of the data are explained. Comment.

A: Given that  The correlation coefficient of 0.5 does not mean that 50% of the data are explained

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: Find the correlation coefficient (r)? xy

A: Given data,

Q: Order each r value from the weakest (1) to the strongest (6) correlation.

A: Given correlation values  r1=0.15, r2=-0.99,r3=0.43, r4=-0.29 r5=0.95 ,r6=-0.5  to arrange the…

Q: John made a scatter plot representing the hours each of his classmates spent studying and their…

A: To find the correlation for hours and marks

Q: Find (i) the Mean of X, (ii) Coefficient of correlation between X and Y.

A: here given N= 50 regression equation X on  Y is 3Y-5X = -180 variance of X is 9/16 of variance of X…

Q: Use the value of the linear correlation coefficient r to find the coefficient of determination and…

A: From the provided information, Correlation coefficient (r) = 0.853

Q: (a) The correlation

A: Answer:

Q: Solve for the coefficient of correlation

A: The given variables are sales revenue and product price.

Q: How can you interpret a correlation value of .885? Moderate, Negative, Direct No Relationship…

A: Given: Correlation value = r = 0.885 We need to interpret this value and choose the correct option.…

Q: Determine whether the correlation is most likely to be positive, negative, or zero between the…

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Q: Determine the type of direction of correlation that you would expect of the given case / situation.…

A: Correlation shows association between the two numerical variables. If one variable increases then…

Q: A group of migraine headache sufferers were tracked over their lifetimes with data taken every 10…

A: From the scatterplot, it is observed that there exists linear relationship between the variables Age…

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: we can conclude from correlation calculation that one variable caused the other variable. True or…

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

Q: Find out the correlation coefficient by the concurrent deviation method: 84 80 86 86 88 102 100 110…

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Q: Given values of x and y, the correlation has a. very strong relationship. b. very strong negative…

A: Given: X Y 3 4 2 5 1 8 4 4 6 2

Q: when r=-0.9 it mean strong negative correlation True False

A:

Q: Use the data values in the table below to calculate the correlation between the variables x and y.…

A: Given data, X Y X*Y X*X Y*Y 1 25.88 25.88 1 669.7744 2 22.44 44.88 4 503.5536 3 21.4 64.2 9…

Q: Calculate the correlation coefficient?

A: We jave to calculate the correlation coefficient based on 3 pairs of obsevations on x and y.

Q: Find the correlation coefficient.

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

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

A: Correlation coefficient, r: The Karl Pearson’s product-moment correlation coefficient or simply, the…

Q: A correlation value of -0.92 is positive and strong positive and weak positive negative and strong

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Q: Determine which plot shows the strongest linear correlation.

A: # From the given scattere plot between variable x and y .then to determine which plot represent str

Q: Write down the properties of R2 . If R2=35.7%, interpret your data. Distinguish between the…

A: Solution : 1. Properties of R2 : i) R2 = 1-RSSTSS where, RSS = Residual sum of square…

Q: What is the value of the correlation coefficent, r? Is the strength of the linear relationship…

A: Given that, Y = 0.205x - 336 R2 = 0.981

Q: A Popsicle store at the beach is comparing their monthly revenue with the sunglasses store next…

A: TRUE