Q5. Compute the value of the Spearman's Correlation Coefficient for the following data. Y Rx-Ry=Dd d? 2 14 4 16 6 22 8 30 10 35 12 40 r =1- , =1- n(n -1)

Q: 5. Calculate the regression equation for the following data and also computes Karl Pearson's co-…

A: We have given that,  No. Of students (X) :- 800, 600, 900, 700, 500, 400 No. Of passed (Y) :- 480,…

Q: The following data pertain to the number of computer jobs per day and the central processing unit…

A: X Y X.Y X.X Y.Y 1 4 4 1 16 2 6 12 4 36 3 8 24 9 64 4 12 48 16 144 5 10 50 25 100

Q: It was calculated as bxy=1.6 and bYX=0.4 in a dataset for variables x and Y. Correlation coefficient…

A: Given  bxy=1.6 , bYX=0.4 Correlation coefficient=R=√(bxy.bYX)

Q: You are presented with the following data: Time spent doing homework/day (X) 0 0 0 20 30 45 80 127…

A: The following information has been provided: X Y 0 90 0 40 0 120 20 45 30 60 45 27…

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: A sample data set produced the following information. n = 13. Ex = 100, Ey = 210, E xy = 3410, Σ…

A:

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: Here is a bivariate data set. x y 49 83.4 46 143.3 50.8 116.6 45.5 173.3 38.6 119.2 34.1 106.8 51.7…

A: The provided data set can be tabulated as:

Q: 8 Compute r, the correlation coefficient, using the following data. 3 y 10 9. 4 8 r= (Round to three…

A:

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: Here is a bivariate data set. X y 79.3 41.2 103.7 -42.2 119.3 -73.7 84.1 27.1 68.3 28.6 73.2 77.5…

A: Correlation coefficient quantifies the strength of relationship between two variables. The value of…

Q: If the correlation coefficient of the data is r= +1, which of the following| description for this…

A: If the correlation coefficient of data is r=+1 Which of following is best description?

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: 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: Compute​ r, the correlation​ coefficient, using the following data. x 1 5 3 6 4 7…

A: In this context, the sample correlation coefficient can be obtained using EXCEL.

Q: Which of the following r-values represent the weakest linear correlation between independent (x) and…

A: A correlation coefficient is used to define, a relation between independent variable (x) and…

Q: The owner of Cypres Recordings investigated the relationship between sales (y) and the amount spent…

A: Given data isx1=12,x2=26,x3=17y1=29,y2=30,y3=18

Q: Compute the Pearson correlation for the following data.   X     Y 2      3 3      1 6      5 4…

A:

Q: A)A set of n=12 of X and Y values produces a Pearson correlation of r= -0.70.Is this a positive of…

A: Given: The sample size is n=12. The correlation coefficient is r= -0.70.

Q: Which of the following values of the correlation r indicates the strongest correlation between the…

A: The correlation coefficient r measures the direction and strength of the linear relationship between…

Q: x y 1 16.45 2 17.5 3 18.05 4 19.6 5 20.45 6 22.7 7 25.05   r=

A:

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: Here is a bivariate data set. X                     Y 31.1             -1.9 20.4             -30…

A: Correlation:   A statistical method that can be applied between the pairs of variables in order to…

Q: The following table shows the number of hours spent for studying and the grade obtained by a student…

A: Since you have posted more than one question, I can answer only first question for you. Given data :

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

A:

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: A researcher obtains SSy = 2, SSy = 8, and SP = 4 for a set of n = 3 pairs of scores. Calculate…

A: We have given that  SSx = 2,     SSy = 8 SP or SSxy = 4 n = 3

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: A previous student of this class was curious about the relationship between number of hours a person…

A:

Q: The following zero-order correlation coefficients are given r12 = 0.98, r13 =0.44 and r123 = 0.54.…

A:

Q: Compute r, the correlation coefficient, using the following data. 7 2 X 3 4 2 8 y 7 (Round to three…

A: The formula to calculate the correlation coefficient is: Mean refers to the average of a data set.…

Q: A mathematics teacher recorded the length of time, y minutes, taken to travel to school when leaving…

A: As per our guidelines we are suppose to answer three sub parts. X Y X*Y X*X Y*Y 0 16 0 0 256…

Q: Calculate co-efficient of correlation from the following information by taking deviation from actual…

A: Correlation is the degree or extent of relationship between two variables.

Q: The following four data pairs have been obtained (1,5), (2,6), (4,9), (5,11). Without carrying out…

A: Option B

Q: 2. Calculate Karl Pearson's co-efficient of correlation between percentage of pass and failure from…

A:

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

A:

Q: Use the set of data points given to the right to answer parts (a) through (e). -4 -1 0 4 16 16 a.…

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 pearson correlation.

A: It is an important part of statistics. It is widely used.

Q: Assuming that ss, is constant, which of the following correlations would have the smallest…

A: GivenSSy : is constantWe want to choose correlation which would have the smallest SSresidual. The…

Q: A set of n=4 pairs of X and Y value has SSx=6, SSy=18, and SP=9, for these data, what is the pearson…

A: Given information- No. of pairs, n = 4 Sum of square of x (SSx) = 6 Sum of square of y (SSy) = 18…

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…

A:

Q: Suppose that for a set of (x,y) data, r² = 0.2916. Find the linear correlation coefficient. Do not…

A: Provided information: For a set of (x,y) data,r2 = 0.2916

Q: and the r = 0.4096. What is the correlation coefficient for this data set? r =

A: Given that Coefficient of determination (r2) = 0.4096   We know that  Correlation coefficient (r) =…

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: 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: 10 8 9 11 6 4 7 13 12 14 y 9.14 8.14 8.77 9.26 6.13 3.10 7.26 4.74 8.74 9.13 8.1

A:

Q: The following results were obtained in a study of correlation coefficient between two variables X…

A: Answer: From the given data,

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.