FINAL Exam 7/29/2021 23. Use DeMorgan's laws or a truth table to determine whether the two statements are equivalent. pvq, ~(~PA-q) Not equivalent Equivalent ID: 3.4-3 24. Mrs. Bollo's second grade class of thirty students conducted a pet ownership survey. Results of the survey indicate that 8 students own a cat, 15 students own a dog, and 5 students own both a cat and a dog. How many of the students surveyed own only a cat? OA. 3 OB. 15 OC. 8 OD. 18 ID: 2.5-2 25. Write an equivalent sentence for the statement. If it is raining, you take your hat. (Hint: Use the fact that p- q is equivalent to ~pvq.) O A. It is not raining and you take your hat. O B. It is not raining and you do not take your hat. O C. It is not raining or you take your hat. O D. If it is raining, you do not take your hat. ID: 3.4-12 26. Find the standard deviation. Round to one more place than the data. 5, 4, 6, 17, 19, 12, 6, 13, 12 O A. 5.1 OB. 1.3 O c. 5.8 O D. 5.5 ID: 12.4-9 27. One card is selected from a deck of cards. Find the probability of selecting a red card or a jack. O A. 1 13 15 O B. 26 OC. 1 - OD. 26 all bren ID: 11.5-11