Podcast
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.
ggplot2 is a popular R package used for data visualization.
ggplot2 is a popular R package used for data visualization.
scatter plot is used to display the relationship between two quantitative variables.
scatter plot is used to display the relationship between two quantitative variables.
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.
Scatter plots are best used for categorical data.
Scatter plots are best used for categorical data.
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.
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.
