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Questions and Answers
The filter() function is used in R to select a subset of rows based on specific conditions.
The filter() function is used in R to select a subset of rows based on specific conditions.
True (A)
mutate() in R is used to add or modify columns in a dataset.
mutate() in R is used to add or modify columns in a dataset.
True (A)
The boxplot() function in R generates a histogram for continuous data.
The boxplot() function in R generates a histogram for continuous data.
False (B)
The select() function is used to rename columns in a dataset.
The select() function is used to rename columns in a dataset.
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ggplot2 is a popular R package used for data visualization.
ggplot2 is a popular R package used for data visualization.
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scatter plot is used to display the relationship between two quantitative variables.
scatter plot is used to display the relationship between two quantitative variables.
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Each point on a scatter plot represents an individual observation in the dataset.
Each point on a scatter plot represents an individual observation in the dataset.
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Scatter plots are best used for categorical data.
Scatter plots are best used for categorical data.
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When interpreting a scatter plot, a positive slope suggests a positive relationship between the variables.
When interpreting a scatter plot, a positive slope suggests a positive relationship between the variables.
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A scatter plot with points clustered tightly around a line indicates a weak correlation.
A scatter plot with points clustered tightly around a line indicates a weak correlation.
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