The data below are the number of absences and the final grades of 9 randomly selected students from a statistics class. Calculate the correlation coefficient, r. of nbooco 2 11 13 10

Q: х %3D 210, . = 9,100, y = 420, >v² = 32,200, ) 2 = 6, ху —D 12,70С

A: If two variable shows related variation between them, then we say that they are correlated. The…

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A: The provided data set is: The formula to compute the correlation coefficient is:

Q: Based on the data shown below, calculate the correlation coefficient (rounded to three decimal…

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Q: What is the sample size when you obtain a correlation coefficient of r = 0.26, between two…

A: It is given that: Correlation (r) = 0.26, ∑Zx Zy = 12.9.

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

Q: The following information is obtained from a sample data set: 10, 10, y = 220, E ry = 3680, x² =…

A: Thanks for the question :)And your upvote will be really appreciable ;)

Q: The ranking of 10 students in two subjects A and B are as follows: A в A B 4 8. 9. 10 3 4 7 7 10 9.…

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Q: The following table lists the ages (in years) and the prices (in thousands of dollars) of a sample…

A: Solution-: Let, X-Age (in years) and -Price (thousands of dollars) We find the correlation…

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Q: A Statistics professor wants to determine how students’ final grades are related to the midterm exam…

A: Given data: Final Grade (y) Midterm Grade (x1) Classes Missed (x2) 81 75 1 90 80 0 86 91 2…

Q: 2. For the data below, compute for the Spearman Rank-Order correlation coefficient: Student X Y 1 12…

A: Given data is Student X Y 1 12 16 2 10 12 3 8 13 4 18 12 5 20 15 6 18 14 7 11 10

Q: Based on the data shown below, calculate the correlation coefficient (rounded to three decimal…

A:

Q: The data below are the number of absences and the final grades of 9 randomly selected students from…

A:

Q: Calculate the correlation coefficient for the following data sets. y 51 2 38 4 54 1 33 4 64 55 1 28…

A: Given data,   X Y X*Y X*X Y*Y 51 2 102 2601 4 38 4 152 1444 16 54 1 54 2916 1 33 4 132…

Q: The following data show the number of hurricanes to directly strike a certain country each decade. A…

A: From the given information, the correlation coefficient is 0.947. The hypotheses are given below:…

Q: The accompanying table shows the maximum weights​ (in kilograms) for which one repetition of a half…

A: Given:

Q: The accompanying table shows the maximum weight(in kilograms) for which one repetition of a half…

A: The given data has been represented in the following table: X Y 180 1.87 185 1.82 155 2.11…

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A: Formula for correlation coefficients r.  r= SSXY/√SSXX*SSYY

Q: The data below are the final exam scores of 10 randomly selected calculus students and the number of…

A: From the provided information, Hours (x) Scores (y) 5 71 7 86 4 66 10…

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A: Given n=6 Alpha =0.05

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A: The given correlation coefficient is 0.545.

Q: Here is a bivariate data set. y 53.8 65.3 72.5 5.5 88 -15.5 71 53.3 54.1 70.6 50.2 71.9 38.9 109.1…

A: The formula of correlation is,

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Q: The data below are the final exam scores of 10 randomly selected history students and the number of…

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Q: The data below are the number of absences and the final grades of 9 randomly selected students from…

A: Given: n=9

Q: Calculate the correlation coefficient for the following data sets and then plot these data sets as…

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

Q: The data below are the final exam scores of 10 randomly selected history students and the number of…

A: We have to find critical value of r.

Q: The following calculator screenshots show the scatterplot and the correlation coefficient between…

A: Correlation: A statistical method that is applied between the pairs of variables to check how the…

Q: The arm span and foot length were measured (in centimeters) for each of the 19 students in a…

A: We can see that the residual plot is increasing . Therefore, correlation is positive

Q: Compute the Pearson correlation for the following data. Describe the relationship in words. Y 12 29…

A: From given data, X Y X*Y X*X Y*Y 12 29 348 144 841 3 41 123 9 1681 16 9 144 256 81 24 1…

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Q: Compute r, the correlation coefficient, using the following data. 4 8. 11 5. 10 (Round to three…

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Q: Calculate the coefficient of correlation from the following data and comment on the result :…

A: X Y X.Y X2 Y2 16 23 368 256 529 12 22 264 144 484 18 24 432 324 576 4 17 68 16 289 3…

Q: Here is a bivariate data set. y 42.1 32.6 70.4 53.1 42.9 68 59 -115.1 52.8 123.6 72.2 14.1 79.5…

A: I will excel formula "=CORREL()" to solve this problem.…

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Q: The data below are the final exam scores of  10 randomly selected statistics students and the number…

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Q: Here is a bivariate data set. y 54.7 71.7 56 32.8 82.5 79.6 49.7 25.4 73.2 88.1 71.4 78.7 81.1 85.8…

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Q: Based on the data shown below, calculate the correlation coefficient (rounded to three decimal…

A: Let correlation coefficient is denoted by = r  And the total number = n

Q: The following data represents the grades of a sample of 12 students in statistics and economics as…

A: Here, A is given as rank 1, the B is given as rank 2, and so on. In this case, tie of ranks are…

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Q: B- what is the sample correlation coefficient of R C- describe the type of correlation if any, and…

A: B. The sums are, X Y X2 Y2 XY 175 1.98 30625 3.9204 346.5 180 1.95 32400 3.8025 351 160…

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Q: The following sample observations were randomly selected. X: 5 3 6 3 4 4 6 8 Y: 13 15 7 12 13 11 9…

A: The observations of X and Y are given. Sample size 'n' is 8.

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A: Solution

Q: The data below are the number of hours worked (per week) and the final grades of 9 randomly selected…

A: The data below are the number of hours worked (per week) and the final grades of 9 randomly selected…