Java

TOPIC 18 – TEST II REVIEW

SOLUTIONS TO QUESTION 4

a) 60%

There is a 40% chance that "A" is outputted. Otherwise, "B" will be outputted so that's a 60% chance.

b) 30%

There is a 20% chance of "A" being outputted. That leaves with a 30% chance of outputting "B".

c) 30%

There are two statement blocks where "B" gets outputted. The first block has a 10% of getting executed. The last block has a 20% chance. So in total, there is a 30% chance.

d) 20%

There is a 50% chance that we enter the first IF statement block. Then, once there, there is a 60% chance we output "A" (notice that there is a > symbol). So that means there is a 40% chance that we output "B".

So, combining the 50% and the 40% by multiplying them, we get 20% overall.