Here is a bivariate data set. x y 122 83 96 154 84 91 102 148 82 133 78 -13 137 122 70 70 77 59 81 97 Find the correlation coefficient and report it accurate to four decimal places. r =

Q: Here is a bivariate data set. x y 61 47 90 27 69 44 73 40 86 35 103 17 80 36 Find the correlation…

A: The correlation coefficient r, for bi-variate data (x,y) is given by the formula, Where n= sample…

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

A: The data shows the number of absences and the final grades of 9 randomly selected students from a…

Q: Calculate the correlation coefficient, r of the following data: Variable X 24 Variable Y 44 13 8 81…

A: We have given that,  X:- 24, 13, 8, 81, 63, 36, 5 Y:- 44, 52, 42, 5, 1, 48, 15 Then,  We will find…

Q: The data show systolic and diastolic blood pressure of a sample of people.     x​ (Systolic) 149 141…

A:

Q: y 8 -37 28 -38 68 -24 19 77 68 -69 50 -53 28 190 26 165 17 124 Find the correlation coefficient and…

A: We have given that,  The data set are : X :- 8, 28, 68, 19, 68, 50, 28, 26, 17 Y:- -37, -38, -24,…

Q: ere is a bivariate data set. x y 17 110 9 97 39 105 40 185 29 153 22 14 50 109 Find the…

A: We have the computation as below:

Q: Here is a bivariate data set. x y 20 106 26 110 13 51 53 22 44 -2 15 91 33 77 30 67 32 64 Find…

A:

Q: x y 55 75 55 64 72 48 50 49 60 76 55 74 56 75 73 58 Find the correlation coefficient and report it…

A: n=8

Q: Here is a bivariate data set. x y 51 18 75 103 59 -64 95 138 71 119 39 2 39 -62 74 103 Find the…

A: Given data, x y 51 18 75 103 59 -64 95 138 71 119 39 2…

Q: Height, x 485 511 520 535 582 615 616 635 728 841 No. of Stories, y 40 37 41 42 38 45 31 40 54 64

A:

Q: hat is the relationship between the amount of time statistics students study per week and their…

A:

Q: A hospital conducts data integration for diabetic patients, as shown in the table below, try to find…

A:

Q: Here is a bivariate data set. x y 38 34 32 49 34 52 30 65 32 58 26 66 33 49 35 40 29 54 Find the…

A: Given that    X Y X \cdot YX⋅Y X^2X2 Y^2Y2   38 34 1292 1444 1156   32 49 1568 1024 2401…

Q: Here is a bivariate data set. x y 69 25 72 15 68 17 67 18 72 27 71 23 67 23 74 30 Find the…

A:

Q: 66 19 71 39 60 29 61 34 67 24 72 33 66 32 73 33 65 29 Find the correlation coefficient and report…

A:

Q: Here is a bivariate data set. y 69 14 72 48 70 71 73 80 -16 62 31 57 111 48 122 73 38 2.

A: From given data, X Y X*Y X*X Y*Y 69 14 966 4761 196 72 48 3456 5184 2304 70 2 140 4900 4…

Q: My answer is incorrect.

A:

Q: The data below is 12 observations of hog heart girth (in) (x) and hog weight (lb) (y). Calculate the…

A: We have to find correct answer..

Q: x y 55 -14 62 8 42 -1 59 25 60 47 46 -14 61 104 67 54 Find the correlation coefficient and report…

A: Given data The formula to calculate correlation coefficient is shown below

Q: Here is a bivariate data set. x y 26 139 32 -53 3 130 40 48 59 25 55 23 40 82 27 106 34 143 52 112…

A: The data shows the bivariate data set.

Q: Here is a bivariate data set. x y 56 48 65| 41 81 50 75 63 87 59 70 65 87 59 57 28 75 54 Find the…

A: Given data, X Y X*Y X*X Y*Y 56 48 2688 3136 2304 65 41 2665 4225 1681 81 50 4050 6561 2500…

Q: . Calculate the Pearson correlation for the following data   X         Y    13         9 15…

A:

Q: The following data gives the number of hours 10 students spent studying and their corresponding…

A: From the given information, x y X^2 Y^2 XY 0 63 0 3969 0 0.5 66 0.25 4356 33 1.5 69 2.25…

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

A: It is given that the number of absences and the final grades of 9 randomly selected students from a…

Q: (a) Use a graphing calculator to find the correlation coefficient for these data. Round to three…

A: Perform the mentioned steps on TI-83 calculator to obtain the required value. Turn on the calculator…

Q: Weight (lbs.) 173 184 194 214 168 220 188 188 207 167 217 Systolic Blood Pressure 132 143 153 162…

A: Note: generally, the blood pressure will not be in a single digit. Here, we are obtaining the…

Q: Here is a bivariate data set. x y 14 61 37 39 14 86 16 101 15 49 34 -32 -2 114 26 77 Find the…

A: Given, x y 14 61 37 39 14 86 16 101 15 49 34 -32 -2 114 26 77…

Correlation

Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

Linear Correlation

A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related. 

Regression Analysis

Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.