The following table gives the probability distribution for X = number of classes skipped yesterday by students at a college.
|
X = Number of classes skipped, X
|
0
|
1
|
2
|
3
|
4
|
|
Probability
|
.73
|
.16
|
.06
|
.03
|
.02
|
a. What is the probability that a randomly selected student skipped either two or three classes yesterday?
b. What is the probability that a randomly selected student skipped at least one class yesterday?
c. Create a table that gives the cumulative distribution function for X.