1. The scatter plot below shows the women's winning marathon times and the high temperatures on the marathon days. Which prediction equation best shows how marathon times and temperature are related? A. B. C. D. Hint 2. A best-fit line is drawn on a scatter plot showing the average daily temperature and the number of people at a public swimming pool. The slope of the line would probably be ________ A. negative. B. positive. C. undefined. D. zero. Hint 3. Students at Garner Middle School are given the opportunity to determine the school's mascot, the mascot's name, and the school colors. The choices are narrowed down to those shown in the table below. What is the probability that the students will choose a lion named Gus for their mascot? A. B. C. D. Hint 4. The calculus class is preparing for the Advanced Placement Exam. If there are 12 girls in a class of 20, how many study groups of 3 girls and 2 boys can be formed? A. 6160 B. 5670 C. 110 D. 8395 Hint 5. How many lines are determined by 7 points, no three of which are collinear? A. 21 B. 105 C. 42 D. 200 Hint 6. A bag contains 7 blue marbles, 8 green marbles, 15 red marbles, and 10 yellow marbles. Find the probability of randomly drawing without replacement, a blue marble and then a red. A. or about 0.0656 B. or about 0.0438 C. or about 0.0673 D. or about 0.2273 Hint 7. Find the probability of rolling two number cubes and getting a 2 on one number cube and a 6 on the other? A. B. C. D. Hint 8. Bill has 4 quarters, 2 dimes, 6 nickels, and 8 pennies in his pocket. He takes one coin at random from the pocket. What is the probability that the coin is a dime or a nickel? A. B. C. D. Hint 9. The letters of the alphabet are placed in a box. What is the probability of selecting a consonant or a letter from the word variable? A. B. C. D. Hint 10. A restaurant manager needs to hire three employees: one host, one server, and one cook. Vito, Kendra, Kale, Sachiko, and Ren all applied for a job. How many possible ways are there for the manager to place the applicants? A. 120 B. 60 C. 3 D. 12 Hint 11. The table shows the results when a number cube was rolled. What is the experimental probability of rolling a five? A. B. C. D. Hint 12. The table shows the results of rolling a number cube over three separate experiments. What is the experimental probability of rolling a four? A. B. C. D. Hint 13. Suppose that the mean is 50. How many standard deviations away is the value 65? A. cannot be determined from given information B. about 2 standard deviations C. within 1 standard deviation D. about 1 standard deviation Hint 14. Compute the variance and standard deviation for the set of {3, 4, 4, 7, 9, 9, 12, 16}. Round to the nearest tenth. A. 4.2; 2.0 B. 17.5; 4.2 C. 15.8; 4.0 D. 16.5; 4.1 Hint