ANSWER A. MULTIPLE CHOICES AND B. FILL IN THE BLANKS

A. MULTIPLE CHOICE: Write the letter of the correct answer before each number. (5 POINTS) 1. What is the probability of getting a composite number on the first roll of a die and getting a prime number on the second roll? A. NI Ad C. B. D. 2. There are 6 red marbles, 5 green marbles, and 4 yellow marbles in a bag. If Joe picks 2 marbles one after this the other without replacement, then what is the probability that both are red in color? A. C. 4 25 B. D. 1 21 17 3. There are 5 red roses, 3 yellow roses, and 8 white roses in a tray. If Stephanie picked 2 roses one after the other without replacing, then what is the probability of picking white rose first and a red rose next? A. C. B D.4. There are 6 pink and 8 white balls in a bag. If two balls are drawn one after the other, then what is the probability of getting a pink ball first and white ball next, if the first ball drawn is replaced? A. C. 12 40 B. D. 3 5. In a bag containing 15 billiard balls of three colors - red, yellow and white, Frank picks a ball at random, notes down the color and replaces it. He repeats this experiment 25 times and the result are shown in the table. Color Frequency Yellow 8 Red 13 White 4 Which is the best prediction of the number of balls of each color in the bag? A. 6 yellow, 9 red, 1 white C. 5 yellow, 8 red, 2 white B. 2 yellow, 5 red, 8 white D. 5 yellow, 10 red, 5 white B. FILL IN THE BLANKS: for nos 1-10 (1, 0, Probability experiment, Sample Space, from 0 to 1, mutually exclusive, dependent event, independent event, and, or 1. Rolling a die or tossing a coin is called a 2. When an event cannot occur, its probability is 3. The set of all possible outcomes of a probability experiment is called the 4. The range of values a probability can assume is 5. When an event is certain to occur, its probability is 6. Tossing two coins and getting two heads or two tails is an example of 7. Drawing a card from a deck and getting a spade or a King is an example of 8. Playing under the sun all day and getting sunburned is an example of 9. The key word which means that one event occurs or the other event occurs is 10. The key word which means that both events occur in sequence and to multiply is