Compound events
What is the probability of rolling a number less than 4 on a standard six-sided die, and flipping heads on a coin?
1/4
What is the probability of rolling an even number on a fair six-sided die?
1/2
What are the odds in favor of rolling a number less than 3 on a standard six-sided die?
1/3
What is 25% as a decimal?
.25
An experiment consists of rolling a fair six-sided die and flipping a fair coin. What is the probability of rolling a number greater than 2 on the die and flipping tails on the coin?
1/3 or 2/6
If you flip a fair coin, what is the probability of landing on tails?
1/2
If you have a bag of 4 red marbles, 3 blue marbles, and 1 green marble, what are the odds against selecting a green marble?
1/8
If you scored 18 out of 20 on a test, what is your score as a percentage?
90%
If you have a bag with 3 green marbles, 2 blue marbles, and 1 red marble, what is the probability of selecting a blue marble and then a green marble, without replacement?
3/15
A bag contains 4 red marbles, 3 blue marbles, and 2 green marbles. What is the probability of selecting a blue marble?
1/3
A box contains 6 black socks, 4 white socks, and 2 gray socks. What are the odds in favor of randomly selecting a white sock?
4/12 or 1/3
In a box, there are 5 red marbles, 3 blue marbles, and 2 yellow marbles. If you randomly select 2 marbles without replacement, what is the probability of selecting 2 blue marbles?
1/15 or 6/90
If you spin a spinner with 8 equal sections numbered 1 to 8, what is the probability of landing on an odd number?
1/2
If there are 5 green marbles and 7 red marbles in a bag, what are the odds against selecting a red marble?
7/12
A jar contains 4 red candies, 5 green candies, and 3 blue candies. If you randomly select 2 candies, what is the probability of selecting 1 red candy and 1 green candy?
5/33
A standard deck of playing cards contains 52 cards. What is the probability of drawing a spade from the deck?
1/13
In a jar of candies, there are 8 red candies and 6 blue candies. What are the odds in favor of selecting a red candy?
8/14 or 4/7