Incomplete question:
A fair die is rolled one. What is P(roll less than 4)? If necessary, round your answer to 2 decimal places.
Answer:
P(roll less than 4) = 0.50
Explanation:
First, we need to list the sample space.

From the above, we have that:
i.e. total rolls
Represent Rolls less than 4 with L4; So,

i.e. number of rolls less than 4
The required probability is calculated as:


