Section B Quiz 1 Advance Machine Learning
10 Questions
| Total Attempts: 114
.
Questions and Answers
- 1.The slope of the regression line of Y on X is also called the:
- A.
Correlation coefficient of X on Y
- B.
Correlation coefficient of Y on X
- C.
Regression coefficient of X on Y
- D.
Regression coefficient of Y on X
- 2.In simple linear regression, the numbers of unknown constants are:
- A.
One
- B.
Two
- C.
Three
- D.
Four
- 3.If the value of any regression coefficient is zero, then two variables are:
- A.
Qualitative
- B.
Correlation
- C.
Dependent
- D.
Independent
- 4.The straight line graph of the linear equation Y = a + bX, slope will be downward If:
- A.
B = 0
- B.
B < 0
- C.
B > 0
- D.
B ≠ 0
- 5.Regression coefficient is independent of:
- A.
Units of measurement
- B.
Scale and origin
- C.
Both (a) and (b)
- D.
None of them
- 6.The purpose of simple linear regression analysis is to:
- A.
Predict one variable from another variable
- B.
Replace points on a scatter diagram by a straight-line
- C.
Measure the degree to which two variables are linearly associated
- D.
Obtain the expected value of the independent random variable for a given value of the dependent variable
- 7.The straight line graph of the linear equation Y = a + bX, slope will be upward If:
- A.
B = 0
- B.
B < 0
- C.
B > 0
- D.
B ≠ 0
- 8.In simple regression equation, the numbers of variables involved are:
- A.
0
- B.
1
- C.
2
- D.
3
- 9.If the points on the scatter diagram indicate that as one variable increases the other variable tends to decrease the value of r will be:
- A.
Perfect positive
- B.
Perfect negative
- C.
Negative
- D.
Zero
- 10.In simple linear regression model Y = α + βX + ε where α and β are called:
- A.
Estimates
- B.
Parameters
- C.
Random errors
- D.
Variables
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