Question

Suppose that we randomly select a student and record how many days they worked during the previous week.

(a) Make a list of all the simple events in the sample space.

(b) List the simple events that make up each of the following events:

i. The student worked at least 4 days.

ii. The student worked every day.

Answer 1

(a)

$$S=\{0, 1, 2, 3, 4, 5, 6, 7\}$$

(b)

i.

$$\{4, 5, 6, 7\}$$

ii.

$$\{7\}$$