2. Vocabulary and R functions>

a) Define the word frequency as it was used in Chapter 2 (include an references).

b) Define the phrase relative frequency as it was used in Chapter 2 (include references).

c) What is the difference between frequency and relative frequency?

3. More practice with R

a) Run interactive R and then run this command:

getwd()

b) Run the following command and paste the output into your learning journal to demonstrate that you have the file:

ex.1 <- read.csv('ex1.csv')

summary(ex.1)