1. Find the probability of selecting a vowel from the letters F, G, H, and I. Express the probability as a fraction, decimal, and a percent. COURSE 2 LESSON 12-1 The event vowel has one outcome, I, out of four possible outcomes. P(vowel) = number of favorable outcomes 1414 total number of possible outcomes P(vowel) = = 0.25 = 25%Write as a fraction, decimal, and percent. 1414 12-1 Probability

2. Jacques has 1 blue shirt, 5 white shirts, 3 green shirts, and 2 brown shirts. He selects a shirt from his closet with his eyes shut. Find each probability. COURSE 2 LESSON 12-1 a. P(white shirt) There are 11 possible outcomes. The event white shirt has 5 favorable outcomes. P(white shirt) = number of favorable outcomes 5 11 total number of possible outcomes 12-1 Probability

3. (continued) COURSE 2 LESSON 12-1 There are 11 possible outcomes. The event colored shirt has 6 favorable outcomes. b. P(colored shirt) c. P(blue shirt) P(colored shirt) = number of favorable outcomes 6 11 total number of possible outcomes There are 11 possible outcomes. The event blue shirt has 1 favorable outcome. P(blue shirt) = number of favorable outcomes 1 11 total number of possible outcomes 12-1 Probability

4. What is the probability that a member of the United States Senate (100 members with two members representing each state) will not be from one of the New England states: Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, and Connecticut? Find P(not New England) as a decimal, a fraction, and a percent. COURSE 2 LESSON 12-1 The probability of a member being selected at random from one of the 6 New England States is, or 0.12. 12 100 P(New England) + P(not New England) = 1 Write the formula. 12-1 Probability

5. (continued) COURSE 2 LESSON 12-1 0.12 – 0.12 + P(not New England) = 1 – 0.12 Subtract 0.12 from each side. P(not New England) = 0.88 = = = 88% 88 100 22 25 0.12 + P(not New England) = 1 Substitute 0.12 for P(New England). 12-1 Probability

6. There are two quarters, three dimes, a nickel, and three pennies in a bowl. What are the odds that a single coin, chosen at random from the bowl, is worth more than six cents? COURSE 2 LESSON 12-1 The odds that a coin is worth more than six cents are 5 to 4 in favor. odds in favor = 5 to 4 or 5 : 4. Five are worth more than six cents. Four are not. 12-1 Probability

7. In a stack are several number cards: three 1s, four 2s, three 3s, two 4s, two 6s, and six 7s. You pick a card at random. 1.Write P(3) as a fraction, a decimal, and a percent. 2.Write P(not 7) as a fraction, a decimal, and a percent. 3.What are the odds of randomly picking a 1? COURSE 2 LESSON 12-1 3 20, 0.15, 15% 7 10, 0.7, 70% 3 : 17 or 3 to 17 12-1 Probability