R Quiz:

Sure! Here's a simple R language quiz with explanations:

1. What function is used to calculate the mean (average) of a set of numbers?

   • A) median()
   • B) mean()
   • C) sum()
   • D) max()

   Correct Answer: B) mean()

   Explanation: The mean() function in R calculates the average of a set of numbers.

2. Which of the following functions is used to generate a sequence of numbers?

   • A) numbers()
   • B) seq()
   • C) range()
   • D) sequence()

   Correct Answer: B) seq()

   Explanation: The seq() function is used to generate a sequence of numbers.

3. What function is used to find the maximum value in a vector?

   • A) maximum()
   • B) max()
   • C) maximum_value()
   • D) max_value()

   Correct Answer: B) max()

   Explanation: The max() function in R is used to find the maximum value in a vector.

4. Which function is used to create a scatter plot in R?

   • A) scatterplot()
   • B) plot()
   • C) scatter()
   • D) scatter_plot()

   Correct Answer: B) plot()

   Explanation: The plot() function in R can be used to create scatter plots among other types of plots.

5. How can you access the fifth element of a vector named data in R?

   • A) data[5]
   • B) data{5}
   • C) data.5
   • D) data(5)

   Correct Answer: A) data[5]

   Explanation: In R, you can access elements of a vector using square brackets notation, like data[5] to access the fifth element.

Feel free to expand the quiz with more questions or topics as needed!