
DL-LR-MATHS
Quiz
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Computers
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University
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Practice Problem
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Medium
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which variable in the equation y=mx+c is dependent?
x
m
c
y
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for the error of a single data point?
(yactual − ypredicted)2
yactual − ypredicted
ypredicted−yactual
yactual + ypredicted
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In business terms, what does the intercept represent?
Marginal change
The total error
Baseline value of the dependent variable when predictors are zero
None of the above
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the slope of the regression line indicate?
How much y changes for a unit change in x?
The total error of the model
The direction of the line
The starting value of yyy
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the most commonly used cost function in linear regression?
Mean Absolute Error (MAE)
Mean Squared Error (MSE)
R-squared
Root Mean Squared Error (RMSE)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does RMSE stand for?
Relative Mean Squared Error
Regression Mean Squared Error
Root Mean Squared Error
Residual Mean Squared Error
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which scenario indicates underfitting?
High training error and high test error
Low training error and high test error
Low training error and low test error
None
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