# Section B Quiz 1 Advance Machine Learning

10 Questions | Total Attempts: 114  Settings  .

• 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.

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