complete the questions below: (Round to 2 decimal places.) Hint: C is the Y-value 1. Write the regression equation C =__S+ F+ 2. Find the value of C when S= 7, F = 0.5 and R = 31.
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.
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complete the questions below:
(Round to 2 decimal places.)
Hint: C is the Y-value
1. Write the regression equation
C= -
F+
R
2. Find the value of C when S=7, F = 0.5 and
R = 31.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa86a1608-4622-4bb5-9da8-5fb01306e299%2F10de59b9-e798-4750-b576-ee1a7a26f819%2Fncag9k9_processed.jpeg&w=3840&q=75)
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B.
D.
F
R
2
100
12
0.5
25
130
11
1.5
29
100
20
130
15
31
130
13
1.5
29
120
3
0.5
26
100
24
120
10
29
150
16
1.5
31
11
12
110
4
0.
25
110
12
25
13
150
15
36
14
160
15
1.5
35
150
15
16
12
29
150
15
1.5
29
17
110
23
18
190
19
1.5
45
19
100
3
23
20
21
120
4
0.5
23
120
11
1.5
28
22
130
0.5
29
23
24
25
Lab1 #1
Labi #2](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa86a1608-4622-4bb5-9da8-5fb01306e299%2F10de59b9-e798-4750-b576-ee1a7a26f819%2Fu6m20fs_processed.jpeg&w=3840&q=75)
![](/static/compass_v2/shared-icons/check-mark.png)
In this case, the variable C is predicted on the basis of variables S, F and R. This implies variable C is the dependent variable (y) and variables S, F and R are independent variables ().
The regression equation for the prediction of C with three predictors, namely, S, F and R can be given as, .
where,
- represents the predicted value of C.
- represents the regression coefficients of S, F and R.
- represents the regression constant.
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