9. The weight of Grade 11 students is an example of ? * Discrete random variable O Continuous random variable Probability mass function O Probability distribution 19. Consider a population consisting of 1,2,3,4, and 5. Suppose sample of size 4 are drawn from this population. What is the mean of the sampling distribution? O O 2 0.13 O 0.36 24. What is the area between z = -1.32 and z = 2.78? 0.2257 0.3614 O 0.9039 0.146225. What is the area between z = -3.12 and z = -1.08? 0.2257 0.3614 O 0.9039 0.1462 1. Which of the following is a set of all possible outcomes which are countable? * b. Continuous random variable A. Discrete random variable c. Random variable O d. variable 22. What is the area that corresponds to z = 0.6? a. 0.2257 b. 0.3614 c. 0.9039 d. 0.4162 0.2257 0.3614 0.9039 0.416223. What is the area between z = 0.34 and z = 2.54? 0.2257 O 0.3614 O 0.9039 0.4162 5. The number of books in the library is an example of? O Continuous random variable O Probability distribution Probability mass function Discrete random variable 13. What is the standard deviation of the probability distribution? O P(X] O 0,87 O 1.00 1.12 0.718. The capacity of water dams in a region is an example of? * 0 Discrete random variable 0 Continuous random variable 0 Probability mass function O Probability distribution 28. The weights of 1000 children average 40kg and the standard deviation is 6kg. How many children weigh below 34kg? O 159 children O 48 children O 819 children O 900 children 2. Which of the following is a discrete random variable? () a. the average amount of water consumption. ( b. the number of patients in a hospital. c. the amount of paint used in repainting a building. d. the average weight of female athletes. 14. What is the mean of the probability distribution? X 0 2 6 P(X) O 2.0 3.5 4.016. What is the standard deviation of the probability distribution? X P(X) O 2.82 2.78 2.15 2.5 24. What is the area between z = -1.32 and z = 2.78? 0.2257 0.3614 0.9039 0.4162 12. What is the variance of the probability distribution? X O 0.75 1.00 1.25 0.50