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Directions: Read car-chilly each it-. Write the letter of the best answer for each test item. _1. Which of the following statement describe a continuous random variable? A. The number of students present in a Class Temperance. E. The average distance travelled by a tricycle in a month. C. The number of motorcycles owned by a randome selected household. D. The number of girls taller than 5 feet in a random sample of 6 girls. _2. Which of the following is an example of discrete variable? A. Distance travelled between cars. B. Height of the students in a section Prudence. C. Number of blue marbles in the box. D. Weight of potatoes in the basket. _3. Which of the following is M a continuous random variable? A. The height of the airplane's ight B. The amount of liquid on a container C. The length of time for the check up in the hospital D. The number of clients of a certain Insurance Company each day 4. Which of the following is discrete random variable? A. Hipolito weighs 65 kg. B. Hipolito is 160 cm tall. C. Hipolito has two brothers. D. Hipolito ran 100 meters in 10.2 seconds. _5. You decided to conduct a survey of families with two children. You are interested in counting the number of girls [out of 2 children] in each family. Is this a random variable? A. Yes. it is a random variable. B. Maybe. C. No. it is not a random variable. D. Cannot be determined. 6. Which of the following statement DOES MT describe a continuous random variable? A. The distance traveled by a truck in an hour. B. The average height of a coconut tree each day. C. The number of provinces belong to Region I. D. The intensity of an earthquake that happens last month. 7. Suppose you tossed three coins. What are the sample spaces for the C. TTT, HHH, HHT, THT, HTI-l D. TTT, TTH, THT. H'I'T, HHT. HTH. THE-l. HHH 8. Suppose three laptops are tested. Let D represent the defective laptop and N for the non-defective laptop. How many possible outcomes will occur from the experiment? A. 3 B. 4 C. 8 D. 9 9. Based on number 8, if we let X be the random variable representing the number of non-defective laptops. What are the possible values of the random variable? A. 0, 1 B. 0, 1, 2 C. 1, 2, 3 D. 0, 1, 2, 3 10. Which probability distribution represents the given problem? A. X 0 2 C. X 0 3 NIH Co | LO P(X) P(X) B. X 0 2 D. X 1 3 CO N CO | W C CO| P(X P(X) 11. Which of the following values can serve as the values of a probability distribution? A. P(1) = 0.42, P(2) = 0.31, P(3 ) = 0.37 B. P(1) = 9/14, P(2) = 4/14, P(3) = 1/14 C. P(1) = 0.08, P(2) = 0.12, P(3 ) = 1.03 D. P(1) = 10/33, P(2) = 12/33, P(3) = 10/33 12. The probabilities that a customer buys 5, 8, 9, 12, and 15 items in a grocery store are 0.06, 0.14, 0.32, 0.28, and 0.20, respectively. Which probability distribution represents the given problem? A. X 5 8 9 12 15 P(X) 0.06 0.14 0.2 0.28 0.32 B. X 5 8 9 12 15 P(X) 0.32 0.28 0.2 0.14 0.06 C. X 5 8 9 12 15 P(X) 0.06 0.14 0.32 0.28 0.20 D. X 5 8 9 12 15 P(X) 0.06 0.14 0.2 0.28 0.3213. The given table represents a probability distribution. What is P(1) + P(4)? X 2 3 P(X) WHA A. OH B. C. D. WIN For number 14 to 15, refer to the given problem below: The given table shows the probability distribution of a random variable Z which represents the percentage of male students per section among Grade 11 senior high school students. Z 8 9 11 14 15 18 P(Z) 8% 8% 25% 17% 25% 17% 14. Find P(Z 2 9) A. 92% B.84% C. 59% D.43% 15. Find P(8
