4. There are 150 children at summer camp and 71 signed up for swimming. There were a total of
62 children that signed up for canoeing and 28 of those also signed up for swimming. Construct a
2-way table to represent the data.
Canoeing No Canoeing
Total
28
Swimming
No Swimming
Total
62
150

An oil exploration company currently has two active projects, one in asia and the other in europe. let a be the event that the asian project is successful and b be the event that the european project is successful. suppose that a and b are independent events with p(a) = 0.2 and p(b) = 0.8. (a) if the asian project is not successful, what is the probability that the european project is also not successful? (b) what is the probability that at least one of the two projects will be successful? (c) given that at least one of the two projects is successful, what is the probability that only the asian project is successful? (round your answer to three decimal places.)