STATISTICS AND PROBABILITY

Choose the letter of the correct answer. (5 points) random M11/12SP . SP-Illa- 1. b. continues Which of the following is a random variable whose possible values cannot be counted? a Continuous c. discreet d. discrete 2. Which of the following statements is true? a. The number of stars in each of the galaxy in the universe is a continuous random variable b. The set of numbers between 1 and 5 is a discrete random variable. c. The take-home salary of each person in the company is a continuous random variable. d. The amount of blood in each person is a discrete random variable. 3. Two four-sided dice with faces numbered 1 through 4 were rolled. Let the random variable x be the sum of two shown faces on top of the dice such that it is greater than four. Find the probability. a. 5/8 b. 3/16 c. 13/16 d. 1/2 4. Let x be the random variable that takes on the values 1, 2, 3 and 4 and P(X) - 0.2. What is P(S)? a-1 b. 0 C. 14 d. % 5. What is the probability of drawing a king from a deck of card? 1 /52 b. 1/26 c. 1/13 d. y In1. Determine whether or not the distribution represents a probability distribution. (5 points) 6 P(Y) AIN AIN Z P(Z) 2 H 3 6 9 P(H) 0.65 -0.15 0.50 3. X P(X) WIHW G S 10 15 20 25 P(G) 0.12 0.3 0.23 0.16 0.15 WRAP-UP ACTIVITY Fill in the blanks with the correct term or words to make each statement true. (5 points) is a numerical quantity that is assigned to the outcome of an experiment. random variable is one that can measure only a countable number of values 3. random variable is generated from an experiment in which things are counted but not measured is a listing of the possible values and the corresponding probabilities of a discrete random variable. The probability distribution of a discrete random variable is also called FEREN