9/4/2017

Questions from problem session on Friday

• Do you want to see one more program to solve Exercise 14.28?

Random Variables

• Geometric Random Variable - geom in R
  • library(visualize)
  • visualize.geom(stat=1, prob=0.3, section="lower", strict = FALSE)
• Negative Binomial Random Variable - nbinom in R
• Poisson Random Variable - pois in R

R functions

• What is the difference between the R commands ddist, pdist, qdist, and rdist?

R Lab

• Create an R Notebook to replicate the graphs shown in Figure 16.1 on page 313.
• Create an R Notebook to replicate the graphs shown in Figure 16.2 on page 315.
• Create an R Notebook to replicate the graphs shown in Figure 16.3 on page 317.
• Create an R Notebook to replicate the graphs shown in Figure 16.4 on page 319.
• Modify the code on p. 292 (see expex.r in scripts folder) to approximate the mean of a geom(.5) random variable. Clearly define your random varaible and interpret the mean.

Please read Chapter 16 Discrete Random Variables for class on Wednesday