Find the correlation coefficient. XY 20 - 11 24 15 32 17 35 19 41 O A) 0,93 B) 0,99 OC) 0,89 OD) D) 0,65 O E) 0,77

Q: Use the given data set to complete parts (a) through (c) below. (Use a = 0.05.) %3D 10 13 11 14 6 4…

A: It is been asked to calculate the correlation coefficient for the given data.

Q: he data below are the ages and annual pharmacy b ills (in dollars) of 9 randomly selected employees.…

A: Given data,   X Y X*Y X*X Y*Y 34 113 3842 1156 12769 37 117 4329 1369 13689 41 120 4920…

Q: Compute the Pearson correlation for the following data.   Hours Spent Studying Per Week (X)…

A: The given data shows the hours of studying and GPA.

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: The correlation coefficient, r, is a number between O-10 and 10 00 and 1 O-∞ and 00 00 and 100 O-1…

A:

Q: In the context of linear association and correlation coefficient, if E(x – ē)(y – 9) = 630, n = 10,…

A: Formula for correlation coefficient : r = Cov(x,y)sxsy Where ,  Cov(x,y) = 1n-1∑(x-x¯)(y-y¯)…

Q: The following information is obtained from a sample data set: n = 10, T = 10,Ey= 220, ry = 3680, r2…

A:

Q: Following is a random sample of price per piece of plywood, X, and quantity sold, Y (in…

A: Correlation is a statistical tool it is used to measure the relationship between two or more…

Q: 25: From the table below, 38 44 50 50 50 53 55 59 60 64 73 74 77 70 58 77 87 82 75 60 72 92 104 126…

A:

Q: In the context of linear association and correlation coefficient, if E(x – a)(y – 9) = 63, n = 49,…

A: Given  ∑(X-x̄)(Y-ȳ)=63, n=49, Sx=1.1, Sy=2.2

Q: Complete the table below and use the formula to calculate the correlation coefficient r and…

A: x y x2 y2 xy 1 11 12 = 1 112 = 121  1 x 11 = 11 8 11 82 = 64 112 = 121  8 x 11 = 88 10 8 102 =…

Q: The data below are the temperatures on randomly chosen days during a summer class and the number of…

A: Let X denote the temperature Let Y denote the number of absences Calculation:

Q: The asking prices (in Rands) and the actual selling prices (in Rands), after bargaining, of 8…

A: sample mean (x̄) = Σx/n  = 3250/8 = 406.25sample mean (ȳ) = Σy/n = 2350/8 = 293.75

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

A:

Q: rela 6. 6. Ues för Corelation Ce y 8. 10 13 19 Clic Clic 3 0.997 4 0.950 5 0.878 6 0.811 7 0.754…

A: Given : X Y 2 4 4 8 6 10 6 13 7 19

Q: Find the coefficient of determination r2, given that the value of the linear correlation…

A: It is given that The correlation coefficient is r = 0.611

Q: Which of the following is not a possible linear correlation coefficientvalue?A) r = 0.327 B) r =…

A: The linear correlation coefficient represents the strength of the variables and direction of the…

Q: 134N d the correlation coefficient for each of the three data sets shown below. (a) (b) (c) y y y 1…

A: We have given some data, We have to calculate correlation coefficient for each sub part. According…

Q: The correlation coefficient, r, is a nurmber between 00 and 00 O-1 and 1 00 and 1 O-00 and 00 O-10…

A: The Pearson correlation coefficient used to define the relationship between two quantitative…

Q: Listed below are the overhead widths (cm) of seals measured from photographs and the weights (kg) of…

A: Correlation coefficient(r):

Q: The data below are the temperatures on randomly chosen days during a summer class and the number of…

A:

Q: The data below are the temperatures on randomly chosen days during a summer class and the number of…

A:

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…

Q: If the correlation coefficient r is equal to 0.321, find the coefficient of determination. O a O b O…

A: Correlation: The extent linear relation between the two variables is called correlation. Positive…

Q: Show that the correlation coefficient between Wj and W2, pw,,W2, is such that |pyj.Y2| = lew1,w2l- a

A:

Q: A sample data set produced the following information. n = 19. x= 100, y= 350, E xy = 3880, = 1620,…

A: From the provided information,

Q: Three sample observations taken for two variables are shown below: X (In $) Y (in ounces) 2.06 0.70…

A: The sample covariance formula is, Covx,y=∑ixi-x¯yi-y¯n-1 In the formula n is the sample size, x¯ is…

Q: e found to have a strong positive linear correlation. Pick the 0.37x + 25 D.87x + 25 7х — 25 — 25 -

A: The regression line is of the form, Y = a+ bx Here b is the slope and a is the intercept. If the…

Q: is the number of games won by a major league baseball team in a season related to the team batting…

A:

Q: Match each scatterplot with its corresponding correlation coefficient: A) 15 В) 15 10 10 5. 3 6 3 12…

A: We are given, four figures and to match the correlation coefficient with four given options. This…

Q: Calculate the correlation coefficient, r, for the data below. x-13 -11 -4 -7 -9 -10 -8 -6 -5 -12…

A: X Y X.Y X2 Y2 -13 -16 208 169 256 -11 -14 154 121 196 -4 3 -12 16 9 -7 -5 35 49 25 -9…

Q: 10. Use the given information to find the coefficient of determination. Find the coefficient of…

A: Given that, Linear correlation coefficient , r = 0.519

Q: Assume that the differences are normally distributed. Complete parts (a) through (d) below.…

A:

Q: What is the r2value if the obtained correlation is r= 0.70? a.  0.049 b.  0.49 c.  1.40 d.…

A: Here we need to find the value of the coefficient of determination from the given value of…

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: Given that the ranks of X and Y are those shown in the table below, calculate the Spearman’s rank…

A:

Q: The asking prices (in Rands) and the actual selling prices (in Rands), after bargaining, of 8…

A:

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

A: We have given that,  The data set are:- X :-8, 10, 7, 13, 7, 9, 9, 10, 11, 8 Y:-61, 76, 56, 84, 62,…

Q: Compute the coefficient of correlation of the following score of A and B: A : 5 10 5 11 12 4 4 2 7 1…

A:

Q: The following data are the college entrance exam (KGS) and verbal comprehension test (SAT) scores of…

A: Solution-: Given data: Let, X=College entrance exam (KGS) and Y=Verbal comprehension test (SAT)  We…

Q: Complete the table below and use the formula to calculate the correlation coefficient r. (to three…

A:

Q: Which of the R values below is consistent with a "perfect" correlation?  a. 0.0 b. 0.5 c. -1.0…

A: We know that,  The correlation coefficient between two variables values lies within -1 to 1. Also…

Q: Let u₁, U2, U3, U4, U5 E R and define ū = U1 ՂԱԶ U3 ՂԱՃ U5 and = 2u1 +3 2u2 +3 2u3 +3 2u4 +3 2u5 +3…

A:

Q: Which of the following best describes the relationship between the variables on the scatter plot…

A: In the question we have to choose correct relation ship for the variables.

Q: The following zero order correlation coefficients are given: l12 = 0.5 "13 = 0.6 r23 =.7 Calculate…

A: When more than 2 variables are to establish the degree of relationship then the correlation is said…

Q: The data below show the Marks scored by eight IT students in two tests: Probability and…

A: GivenData of marks obtained by 8 students in Probability and Statistics and programming as shown…

Q: The following data shows the car rental companies and their cars and corresponding income in the…

A: The provided data is  Company Cars (x) (in ten thousands) Income (y) (in billions) xy x2 y2…

Q: Complete the table below and use the formula to calculate the correlation coefficient r. (to three…

A:

Q: Which of the scatterplots in the picture show each other the following? ​a) no​ association? ​b) a…

A: Introduction: It is required to identify the correct description for each graph.

Q: A sample data set produced the following information. n = 13, 2 x = 120, Ey= 260. xy.= 3510, = 1520,…

A: From the provided information,

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.