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Data Visualization with ggplot2 MCQ question and answer with solution | R Programming MCQs

Learn Data Visualization with ggplot2 MCQ Questions and answers with easy and logical explanations in R Programming. Data Visualization with ggplot2 MCQ question provides all type of technical mcq questions which is important for technical exams, campus exams and other entrance examination. Page-5 section-2

Each section contains 100 MCQs on Data Visualization with ggplot2 .
41
If Linear regression model perfectly first i.e., train error is zero, then . . . . . . . .
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Answer & Solution
Answer: Option C
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42
Which of the following metrics can be used for evaluating regression models?
i) R Squared
ii) Adjusted R Squared
iii) F Statistics
iv) RMSE / MSE / MAE
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Answer & Solution
Answer: Option D
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43
How many coefficients do you need to estimate in a simple linear regression model (One independent variable)?
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Answer & Solution
Answer: Option B
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44
In a simple linear regression model (One independent variable), If we change the input variable by 1 unit. How much output variable will change?
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Answer & Solution
Answer: Option D
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45
Function used for linear regression in R is . . . . . . . .
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Answer & Solution
Answer: Option A
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46
In syntax of linear model lm(formula,data,..), data refers to . . . . . . . .
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Answer & Solution
Answer: Option B
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47
In the mathematical Equation of Linear Regression Y = β1 + β2X + ϵ, (β1, β2) refers to . . . . . . . .
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Answer & Solution
Answer: Option C
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48
. . . . . . . . is an incredibly powerful tool for analyzing data.
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Answer & Solution
Answer: Option A
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49
The square of the correlation coefficient r 2 will always be positive and is called the . . . . . . . .
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Answer: Option B
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50
Predicting y for a value of x that's outside the range of values we actually saw for x in the original data is called . . . . . . . .
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Answer & Solution
Answer: Option B
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