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BCA QUIZ 2

Authored by Aaron D'Lima

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BCA QUIZ 2
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following measures is unit-dependent?

Correlation

Covariance

Mean

Standard deviation

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The equation of a simple linear regression is represented as:

y=mx+c

y=aX+bX^2

y=ax^2+bx+c

y=a+bX

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In linear regression, the residual is:

The slope of the regression line

The predicted value

The error between the actual and predicted values

The intercept of the regression line

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which metric is used to evaluate the performance of a regression model?

Mean Absolute Error (MAE)

Root Mean Squared Error (RMSE)

R-squared (R^2)

All the above(a,b,c)

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Multiple linear regression allows:

a) Only one independent variable

b) Multiple independent variables

c) Only one dependent variable

d) Both b and c

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a study of how exercise affects weight loss, the dependent variable is:

a) Exercise

b) Diet

c) Weight Loss

d) Both a and c

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement is true about dependent and independent variables?

The dependent variable explains changes in the independent variable.

The independent variable is affected by the dependent variable.

The dependent variable depends on the independent variable.

None of the above

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