A survey of 73 customers was taken at a bookstore regarding the types of books purchased. The survey found that 45 customers purchased mysteries 37 purchased science fictionfiction​, 30 purchased romance novels 2020 purchased mysteriesmysteries and sciencescience fictionfiction​, 1717 purchased mysteriesmysteries and romanceromance   1313 purchased sciencescience fictionfiction and romanceromance novelsnovels​, and 55 purchased all three types of books.   ​a) How many of the customers surveyed purchased only science fictionscience fiction​? ​b) How many purchased mysteriesmysteries and sciencescience fictionfiction​, but not romanceromance novelsnovels​? ​c) How many purchased mysteriesmysteries or sciencescience fictionfiction​? ​d) How many purchased mysteriesmysteries or sciencescience fictionfiction​, but not romanceromance novelsnovels​? ​e) How many purchased exactly two types of​ books?

A survey of 1,059 tourists visiting Orlando was taken. Of those surveyed: 291 tourists had visited the Magic Kingdom 290 tourists had visited LEGOLAND 298 tourists had visited Universal Studios 99 tourists had visited both the Magic Kingdom and LEGOLAND 66 tourists had visited both the Magic Kingdom and Universal Studios 51 tourists had visited both LEGOLAND and Universal Studios 12 tourists had visited all three theme parks How many tourists had not visited any of these three theme parks?

A survey of 1,046 tourists visiting Orlando was taken. Of those surveyed: 254 tourists had visited  the Magic Kingdom 263 tourists had visited LEGOLAND 57 tourists had visited both the Magic Kingdom and LEGOLAND 55 tourists had visited both the Magic Kingdom and Universal Studios 55 tourists had visited both LEGOLAND and Universal Studios 31 tourists had visited all three theme parks 82 tourists did not visit any of these theme parks How many tourists only visited the Universal Studios (of these three)?

In a survey of 203 professional athletes, it was found that 98 of them owned a convertible, 86 of them owned a giant screen TV, and 98 owned a sporting goods store. 25 owned a convertible and a store, 36 owned a TV and a store, and 51 owned a convertible and a TV. 15 owned all three items. a. How many athletes did not own any of the three items? b. How many owned a convertible and a TV, but not a store? c. How many athletes owned a convertible or a TV? d. How many athletes owned exactly one type of item in the survey? e. How many athletes owned at least one type of item in the survey? f