R Programming Language Quiz

What is a key feature of R as a programming language?

• Low-level memory management

• Web development

• Grouping, loops and conditional execution

• Object-oriented programming

Which of the following is NOT a part of exploratory data analysis?

• Histogram

• Data encryption

• Standard deviation

• Mean

What does the term 'variance' refer to in data analysis?

• The average of a dataset

• The spread of data points around the mean

• The maximum value in a dataset

• The minimum value in a dataset

Which graphical representation is used to show the distribution of a dataset?

• Box plot

• Line graph

• Pie chart

• Bar graph

What is the purpose of ggplot2 in R?

• Database management

• Creating graphics

• Statistical modeling

• Data cleaning

Which of the following is a measure of central tendency?

• Standard deviation

• Range

• Median

• Variance

What type of plot is a scatterplot?

• A plot showing categorical data

• A plot showing cumulative data

• A plot showing relationships between two variables

• A plot showing frequency distribution

What does the term 'aggregate' refer to in R?

• Filtering data

• Visualizing data

• Combining data into summary statistics

• Sorting data

Which of the following is a common graphical tool in R?

• Tableau

• Excel

• ggplot2

• Power BI

What is the standard deviation a measure of?

• The average value

• The spread of data points

• The total number of data points

• The maximum value