Compute the Pearson's sample correlation r, if you have the following values: Σχ40, Σχ350, Σy = 330, Ey; 330, Σ Ey = 30100, Ex;y; = 2050, n = 8 Σχ %3D8 %3D %3D %3D

Q: In baseball, is there a linear correlation between batting average and home run percentage? Let x…

A:

Q: Following is a random sample of five (x, y) pairs of data points:(12, 200) (30, 600) (15, 270) (24,…

A: xi yi (xi-x) (yi-y) ∑i=1n(xi-x)(yi-y) (xi-x)2 (yi-y)2 12 200 -7 -156 1092 49 24336 30 600 11 244…

Q: Let x and y be the sample means for two variable x and y. The centered x-data and the centered…

A: Let us denote Distance by X and Amplitude by Y respectively. The centered data for X and Y is…

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.

Q: Calculate estimates of the standard deviations sx, sy of the samples x = (5, 9, 7) and y = (−1, 2,…

A: x y 5 -1 9 2 7 5

Q: c) Compute the sample correlation coefficient r for each of the following data sets and show that r…

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

Q: (c) Compute the sample correlation coefficient r for each of the following data sets and show that r…

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

Q: Here is a bivariate data set. y 55.2 36.1 52.6 4.4 62.1 85.4 58.7 39.5 60.8 51 65.5 64.8 66.1 46.6…

A: x y 55.252.662.158.760.865.566.163.564.669.168.363.955.563.866.1…

Q: Run a regression analysis on the following bivariate set of data with y as the response variable. x…

A: The following data are passed: X Y 91.2 16.5 69.4 39.4 63.8 37.2 58.8 43.9 55.2 31.4…

Q: The following data for the dependent variable, y, and the independent variable, x, have been…

A: Solution: The given data is

Q: Find the correlation coefficient r for the given set of data.  x y 2 9 4 11 5 19 7 23 How do you…

A: We have given that the data in tabulation form of two variables X and Y.   Correlation coefficient…

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: Following is a random sample of three (x, y) pairs of data points (10, 100), (15, 50) and (6, 25).…

A: Given,

Q: and the r = 0.6241. What is the correlation coefficient for this data set? r =

A: We have given that  The regression equation is  y^ = 70.25 + 54.57x and r2 = 0.6241

Q: The following information represents chlorine residuals in swimming pool (y) and the testing time…

A: Given - n = 6

Q: Here is a bivariate data set. y 36.2 76.3 34.3 81 26.9 77 38.9 67.2 41.9 93.1 49.6 85.3 47.2 65.7…

A:

Q: Compute the correlation co-efficient between the variables X and Y represer following table: X 4 11…

A: Correlation It tells how the variables are linearly related with each other. It represents the…

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

A: Given:

Q: A set of n=38 pairs of x and y scores has SSx=150 SSy=25 Ex=50 Ey=160 and EXY=200.What is the…

A: given data  n = 38, SSX = 150 , SSY = 25 Σx = 50 , Σy = 160, Σxy = 200 Pearson correlation is…

Q: Following is a random sample of three (x, y) pairs of data points (10, 100), (15, 50) and (6, 25).…

A: From given data, X Y X*Y X*X Y*Y 10 100 1000 100 10000 15 50 750 225 2500 6 25 150 36 625

Q: Just by looking at the scatter plot, estimate the value of the Pearson correlation: O -0.70 to -0.90…

A:

Q: Here is a bivariate data set. х | у 81.9 40.8 66.5 50.2 57.7 93.7 90.3 71.4 42.7 75.6 66.4 39.1 99.7…

A: According to the provided information, bivariate data set are given.A correlation coefficient…

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,

Q: Here is a bivariate data set. x y 36.7 79.3 31.4 46.9 34 79.2 43.1 71.8 32.7 65.6 27.2 58.9 45.2…

A:

Q: The data shown to the right for the dependent variable, y, and the independent variable, x, have…

A: The independent variable is x. The dependent variable is y. The given data represents simple linear…

Q: Find the coefficient of determination, given that the value of the linear correlation coefficient,…

A: Solution: From the given information, the value of the linear correlation coefficient is r=0.681.

Q: D.Compute and interpret the sample correlation co efficient  e. Generate a line of best fit in…

A: Correlation is used to measure the strength of association between the two variable. It used…

Q: The data shown to the right for the dependent variable, y, and the independent variable, x, have…

A: Given data, X Y X*Y X*X Y*Y 11 60 660 121 3600 13 60 780 169 3600 10 70 700 100 4900 14…

Q: 1. Calculate the linear correlation coefficient for the following data. X = 4,8,12, 16 and Y = 5,…

A: Given Data X = 4, 8, 12, 16 and Y = 5, 10, 15, 20

Q: In a sample analysis with 50 respondents, we wanted to study the relationship between the number X…

A:

Q: Following Is a random sample of three (x, y) palrs of data points (10, 100), (15, 50) and (6, 25).…

A: Given Information: Sample size n=3. x y 10 100 15 50 6 25 The objective is to determine…

Q: wVI AL - Compute the correlation coefficient of the following bivariate data. Then, give a…

A: According to our policy we can answer only first part for remaining please repost the question

Q: Find the value of the linear correlation coefficient r for the simple random sample of paired data…

A:

Q: Compute r, the correlation coefficient, using the following data. 7 3 8 y 6. 10 3 (Round to three…

A: Mx= Mean of X Values=∑xiin=(6+5+7+3+1+8)6=306=5 My= Mean of Y Values=∑yiin=(3+5+3+6+10+3)6=306=5

Q: Compute the sample correlation coefficient r for each of the following data sets and show that r is…

A: We know the sample correlation coefficient r between x and y variable as:

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

A:

Q: The data shown to the right for the dependent variable, y, and the independent variable, x, have…

A: The independent variable is x. The dependent variable is y. The given data represents simple linear…

Q: A researcher obtained the following results for a study: n = 44,  SSy = 340603,  SSx = 33712, B̂ =…

A:

Q: (c) Compute the linear correlation coefficient between the height and head circumference of a child.…

A: Provided data is ; Height(x) Head circumference(y) (xi-x¯) (yi-y¯) (xi-x¯)2 (yi -y¯)2…

Q: Calculate estimates of the standard deviations sx, sy of the samples x = (5, 9, 7) and y = (−1, 2,…

A: The following data is given in the data X = 5, 9, 7Y=-1, 2, 5 First, we need to calculate mean of X…

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…

Q: Here is a bivariate data set. y 30.4 1.4 28.5 37.7 34.4 46.8 47.9 29.8 23.3 6.3 46.3 32.9 56.6 64.6…

A: From the given data we find the correlation coefficient.

Q: A set of n=15 pairs of scores (x and y values) has Ssx =200, Ssy=60, and Sp=30.What is the Pearson…

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Q: The following information represents chlorine residuals in swimming pool (y) and the testing time…

A:

Q: A set of n=5 pairs of X  and Y has SSx=16, SSy=4 and SP=2. for these data , what is the Pearson…

A:

Q: Here is a bivariate data set. y 32.8 83 44.1 88.9 28.5 70.7 18.4 42.4 20.1 51.6 29.9 51 26.8 64 42.6…

A:

Q: The data shown to the right for the dependent variable, y, and the independent variable, x, have…

A: Given: The data are arranged in a ascending order. X Y 10 100 11 110 11 120 12 140 13…