Suppose you're asked to calculate the mean and standard deviation of a numeric variable in a data set in R. How would you do it?
- Use the mean() function to calculate the mean and the sd() function to calculate the standard deviation
- Use the median() function to calculate the mean and the mean() function to calculate the standard deviation
- Use the sd() function to calculate the mean and the median() function to calculate the standard deviation
- Use the var() function to calculate the mean and the sd() function to calculate the standard deviation
To calculate the mean and standard deviation of a numeric variable in a data set in R, you would use the mean() function to calculate the mean and the sd() function to calculate the standard deviation. The mean() function provides the average value, while the sd() function calculates the spread or variability of the values around the mean.
Loading...
Related Quiz
- Can you describe a scenario where you would need to calculate the mode of a character vector in R?
- How do you create a data frame in R?
- What are some primary uses of the R programming language?
- What are the methods to replace a certain pattern in a string in R?
- How does R handle mathematical operations that involve both integers and decimals?