Probability of Simple Events

1. 1. What is the probability of selecting a black card from a standard deck of playing cards?

• 1/4

• 3/4

• 1/2

• 2/3

2. 2. What is the probability of getting a "seven" from a single roll of a die?

• 0

• 1/2

• 2/3

• 1

3. 3. What is the probability of having a head and a tail after tossing two coins at the same time?

• 1/4

• 1/3

• 1/2

• 1

4. 4. What is the probability of picking yellow marble from a box which contains 6 blue, 5 green, and 3 yellow marbles?

• 1/2

• 3/7

• 5/14

• 3/14

5. 5. What is the probability of landing on color white after a spinner with the colors white, red, orange, and blue is spun?

• 1/4

• 1/3

• 1/2

• 1

6. 6. Earl is asked to choose a day from a week. What is the probability of choosing a day which starts with S?

• 1/7

• 2/7

• 3/7

• 4/7

7. 7. Choosing a month from a year, what is the probability of selecting a month with 28 days?

• 1/12

• 3/4

• 1/2

• 1

8. 8. If a letter is chosen at random from the word PERSEVERANCE, what is the probability that the letter chosen is E?

• 1/2

• 1/4

• 3/4

• 1/3

9. 9. Of the 45 students in a class, 25 are boys. If a student is selected at random for an Educational Trip, what is the probability of selecting a girl?

• 5/9

• 4/9

• 1/3

• 5/8

10. 10. Jun rolls two dice. The first die shows a 5. The second die rolls under his desk, and he cannot see it. Now, what is the probability that both dice show 5?

• 1/3

• 1/6

• 1/36

• 9/36