To open R with the dataset preloaded, right-click here and choose "Save Target As" to download the file to your computer. Then find the downloaded file and double-click it to open it in R.
The data have been loaded into the data frame actor_age. Enter the command actor_age to see the data. The only variable (column title) in the data frame actor_age is Age.
The following command will show you the five-number summary for the actors' age data and the mean value of the data as well:
summary(actor_age$Age) To get specific descriptive statistics from the data set consider the following commands:
For the Mean:
mean(actor_age$Age) For the Standard Deviation:
sd(actor_age$Age) For the Variance:
var(actor_age$Age) For the Median:
median(actor_age$Age For the Inter-quartile range:
IQR(actor_age$Age) For the Minimum:
min(actor_age$Age) For the Maximum:
max(actor_age$Age) For the Sample Size (n):
length(actor_age$Age) For the First Quartile (25th percentile, Q1):
quantile(actor_age$Age, 0.25) For the Third Quartile (75th percentile, Q3):
quantile(actor_age$Age, 0.75)