R Programming for Statistics and Data Science - Introduction to Vectors

This video tutorial covers the basics of vectors in R, including their types and arithmetic operations. It explains how to perform element-wise operations such as addition, subtraction, multiplication, and division. The tutorial also introduces advanced mathematical functions like mean, median, and standard deviation. It highlights the usefulness of these operations in handling large datasets and writing functions. The video concludes with a mention of additional resources and future topics like logarithms, variance, and correlation.

What are the most commonly used types of vectors in R?

• Numeric, Text, Logical, Factor

• Double, Character, Logical, Integer

• String, Boolean, Float, Integer

• Array, List, Matrix, Data Frame

How are arithmetic operations performed on vectors in R?

• Element-wise

• Simultaneously

• Randomly

• Sequentially

Which function is used to find the mean of vector elements in R?

• average()

• mean()

• median()

• sum()

What is the standard deviation of the vector with elements 1, 2, and 3?

• 2

• 1

• 0

• 3

Which function helps in finding the lowest value in a vector?

• low()

• min()

• max()

• least()