In: Statistics and Probability
The minimum and maximum values of the coefficient of
determination r2 are, respectively,
A. 0 and 1
B. −1 and 1
C. −1 and 0
D. 0 and +∞
The following data represent a random sample of earwig density (x) and the proportion of males that have forceps (y).
Earwig Density |
Proportion of Males with Forceps |
0.25 |
0.05 |
5.3 |
0.1 |
12.6 |
0.67 |
22 |
0.19 |
25.4 |
0.04 |
32.3 |
0.53 |
Which of the following is the correlation coefficient?
A. 0.33
B. 0.17
C. 0.02
D. 0.8
Which of the following is the equation of the regression
line?
A. y^=0.0072x+0.1452
B. y^=0.0072+0.1452x
C. y^=0.3319+0.1101x
D. y^=0.1101x+0.3319
A) Given data
1) The minimum and maximum values of coefficient of determination are between
0 and 1(Option-A)
Now A=0.1452
B=0.0007245
So,the equation of regression line is
Y=A+Bx
=0.1452+0.0007245x
=0.0007245x+0.1452 (Option-A)