Vehicle Registration Plate and Stereo Sound

Review
1. When a die is rolled, find the probability of getting a
a. 5
b. 6
c. Number less than 5
2. When a card is selected from a deck, find the probability of getting
a. A club
b. A face card or a heart
c. A6 and a spade
d. A king
e. A red card
3. In a survey conducted at a local restaurant during breakfast hours, 20 people preferred orange juice, 16 preferred grapefruit juice, and 9 preferred apple juice with breakfast. If a person is selected at random, find the probability that she or he prefers grapefruit juice.
4. If a die is rolled one time, find these probabilities.
a. Getting a 5
b. Getting an odd number
c. Getting a number less than 3
5. A recent survey indicated that in a town of 1500 households, 850 had cordless telephones. If a household is randomly selected, find the probability that it has a cordless telephone.
6. During a sale at a men’s store, 16 white sweaters, 3 red sweaters, 9 blue sweaters, and 7 yellow sweaters were purchased. If a customer is selected at random, find the probability that he bought
a. A blue sweater
b. A yellow or a white sweater
c. A red, a blue, or a yellow sweater
d. A sweater that was not white
7. At a swimwear store, the managers found that 16 women bought white bathing suits, 4 bought red suits,
3 bought blue suits, and 7 bought yellow suits. If a customer is selected at random, find the probability that she bought
a. A blue suit
b. A yellow or a red suit
c. A white or a yellow or a blue suit
d. A suit that was not red
8. When two dice are rolled, find the probability of getting
a. A sum of 5 or 6
b. A sum greater than 9
c. A sum less than 4 or greater than 9
d. A sum that is divisible by 4
e. A sum of 14
f. A sum less than 13
9. The probability that a person owns a car is 0.80, that a person owns a boat is 0.30, and that a person owns both a car and a boat is 0.12. Find the probability that a person owns either a boat or a car.
10. There is a 0.39 probability that