Podcast
Questions and Answers
Which of the following is a type of qualitative attribute?
Which of the following is a type of qualitative attribute?
- Discrete
- Ratio
- Nominal (correct)
- Interval
Which of the following operations can be applied to all types of attributes?
Which of the following operations can be applied to all types of attributes?
- Multiplication
- Comparison (correct)
- Division
- Addition
Which of the following is a technical format for storing tabular data?
Which of the following is a technical format for storing tabular data?
- XML
- MAT
- FCS
- CSV (correct)
Which of the following processes involves gathering columns into a new pair of variables?
Which of the following processes involves gathering columns into a new pair of variables?
Which function is used to perform the spreading process in R?
Which function is used to perform the spreading process in R?
Which process involves separating one column into multiple columns based on a separator character?
Which process involves separating one column into multiple columns based on a separator character?
Which of the following is NOT a learning outcome of the CSE5DEV course?
Which of the following is NOT a learning outcome of the CSE5DEV course?
Which of the following is NOT a data format mentioned in the text?
Which of the following is NOT a data format mentioned in the text?
What are the categories of data mentioned in the text?
What are the categories of data mentioned in the text?
What type of representation will be used in CSE5DEV labs?
What type of representation will be used in CSE5DEV labs?
Which of the following data structures is NOT mentioned in the text?
Which of the following data structures is NOT mentioned in the text?
What is the purpose of data wrangling?
What is the purpose of data wrangling?
Which logical condition operator is used to select data based on the disp value that is equal to or less than 160 and hp less than 110?
Which logical condition operator is used to select data based on the disp value that is equal to or less than 160 and hp less than 110?
Which function is used to extract data that satisfy certain criteria in R?
Which function is used to extract data that satisfy certain criteria in R?
Which R function is used to iterate over a vector?
Which R function is used to iterate over a vector?
Which R function is used to repeat a block of code a specified number of times until a condition is met?
Which R function is used to repeat a block of code a specified number of times until a condition is met?
Which R function is used to evaluate an expression as long as a stated condition is true?
Which R function is used to evaluate an expression as long as a stated condition is true?
Which package in R is used for data wrangling and provides functions for select, filter, arrange, mutate, and summarise?
Which package in R is used for data wrangling and provides functions for select, filter, arrange, mutate, and summarise?
Which of the following functions in R is used to show the first 6 rows of a data frame?
Which of the following functions in R is used to show the first 6 rows of a data frame?
What is the output of the following code in R?
x <- c(3, 5, 1, 2, 7, 6, 4)
x < 5
What is the output of the following code in R?
x <- c(3, 5, 1, 2, 7, 6, 4) x < 5
Which of the following logical operators in R compares vectors element by element and returns TRUE or FALSE?
Which of the following logical operators in R compares vectors element by element and returns TRUE or FALSE?
What is the output of the following code in R?
x <- c(5, 3, 7, 9, 10)
x > 5
What is the output of the following code in R?
x <- c(5, 3, 7, 9, 10) x > 5
Which of the following functions in R checks whether all entries of a logical vector are TRUE?
Which of the following functions in R checks whether all entries of a logical vector are TRUE?
What is the output of the following code in R?
x <- c(3, 5, 1, 2, 7, 6, 4)
which(x == 2)
What is the output of the following code in R?
x <- c(3, 5, 1, 2, 7, 6, 4) which(x == 2)
Which package needs to be installed and loaded in R to use the data wrangling functions filter(), arrange(), select(), and mutate()?
Which package needs to be installed and loaded in R to use the data wrangling functions filter(), arrange(), select(), and mutate()?
What function is used to create a data frame in R?
What function is used to create a data frame in R?
What is the purpose of the function filter() in data wrangling?
What is the purpose of the function filter() in data wrangling?
What is the purpose of the function arrange() in data wrangling?
What is the purpose of the function arrange() in data wrangling?
What is the purpose of the function select() in data wrangling?
What is the purpose of the function select() in data wrangling?
What is the purpose of the function mutate() in data wrangling?
What is the purpose of the function mutate() in data wrangling?
Which R package is required for data wrangling and provides functions for select, filter, arrange, and mutate?
Which R package is required for data wrangling and provides functions for select, filter, arrange, and mutate?
What is the purpose of the 'filter()' function in data wrangling?
What is the purpose of the 'filter()' function in data wrangling?
Which function is used to create a data frame in R?
Which function is used to create a data frame in R?
What are the categories of data mentioned in the text?
What are the categories of data mentioned in the text?
Which R function is used to evaluate an expression as long as a stated condition is true?
Which R function is used to evaluate an expression as long as a stated condition is true?
Which logical condition operator is used to select data based on a specific condition in R?
Which logical condition operator is used to select data based on a specific condition in R?
Which of the following is NOT a type of qualitative attribute?
Which of the following is NOT a type of qualitative attribute?
Which of the following operations can be applied to all types of attributes?
Which of the following operations can be applied to all types of attributes?
Which R function is used to gather columns into a new pair of variables?
Which R function is used to gather columns into a new pair of variables?
Which R function is used to spread columns into a new pair of variables?
Which R function is used to spread columns into a new pair of variables?
Which R function is used to separate one column into multiple columns based on a separator character?
Which R function is used to separate one column into multiple columns based on a separator character?
Which of the following is NOT a technical format for storing tabular data?
Which of the following is NOT a technical format for storing tabular data?
Which of the following functions in R is used to show the last 6 rows of a data frame?
Which of the following functions in R is used to show the last 6 rows of a data frame?
What is the output of the following code in R?
x <- c(3, 5, 1, 2, 7, 6, 4)
which(x < 5)
What is the output of the following code in R?
x <- c(3, 5, 1, 2, 7, 6, 4) which(x < 5)
Which of the following processes involves combining multiple columns into a single column in R?
Which of the following processes involves combining multiple columns into a single column in R?
Which R function is used to check whether all entries of a logical vector are TRUE?
Which R function is used to check whether all entries of a logical vector are TRUE?
What is the purpose of the function mutate()
in data wrangling?
What is the purpose of the function mutate()
in data wrangling?
Which logical condition operator is used to select data based on the disp value that is equal to or less than 160 and hp less than 110?
Which logical condition operator is used to select data based on the disp value that is equal to or less than 160 and hp less than 110?
What are the two main topics covered in the CSE5DEV course?
What are the two main topics covered in the CSE5DEV course?
What is the purpose of data wrangling?
What is the purpose of data wrangling?
Which R function is used to import data from a text file into the R environment?
Which R function is used to import data from a text file into the R environment?
Which of the following is NOT a type of data structure mentioned in the text?
Which of the following is NOT a type of data structure mentioned in the text?
Which process involves separating one column into multiple columns based on a separator character?
Which process involves separating one column into multiple columns based on a separator character?
What is the purpose of the function mutate() in data wrangling?
What is the purpose of the function mutate() in data wrangling?