1. What is the probability of rolling an even number on a fair six-sided die?
a) 1/6
b) 1/3
c) 1/2
d) 2/3
2. A bag contains 5 red balls and 3 blue balls. What is the probability of drawing a red ball randomly from the bag?
a) 3/8
b) 2/5
c) 5/8
d) 3/5
3. If you flip a fair coin twice, what is the probability of getting two heads?
a) 1/4
b) 1/3
c) 1/2
d) 1/8
4. A box contains 10 green marbles and 5 blue marbles. What is the probability of randomly selecting a blue marble and then a green marble, without replacement?
a) 5/21
b) 5/15
c) 1/5
d) 10/15
5. If you draw a card from a standard deck of 52 cards, what is the probability of drawing a heart or a diamond?
a) 1/4
b) 1/2
c) 3/4
d) 1/3
6. In a jar, there are 8 red marbles, 5 blue marbles, and 3 green marbles. If you randomly draw one marble, what is the probability of getting a blue marble?
a) 3/16
b) 1/3
c) 5/16
d) 5/8
7. What is the probability of rolling a sum of 7 with two fair six-sided dice?
a) 1/6
b) 1/3
c) 1/12
d) 1/9
8. A bag contains 6 red balls, 4 green balls, and 2 yellow balls. If you randomly select one ball and then another ball without replacement, what is the probability of getting two red balls?
a) 6/12
b) 1/3
c) 5/11
d) 1/6
9. In a lottery, there are 50 tickets, and only 2 of them are winning tickets. What is the probability of winning if you buy one ticket?
a) 1/25
b) 1/50
c) 2/50
d) 1/2
10. A spinner is divided into 8 equal sections, numbered from 1 to 8. If the spinner is spun once, what is the probability of landing on an odd number?
a) 1/2
b) 3/8
c) 1/4
d) 1/8