Use the contingency table in Table 28 to find the indicated probabilities For Exercises 23–26. A student is chosen at random. Define the following events:

  • U: Undergrad, G: Graduate student, D: Prefers desktops for email, S: Prefers smartphones for email.
Table 5.62: TABLE 28 Contingency table of D and S versus U and G
Desktops Smartphones Total
Undergrads 2 4 6
Graduate students 3 6 9
Total 5 10 15

Question 5.236

23. Student prefers desktops for email, given student is an undergrad, (D given U)

5.3.23