1.
What is the probability that when a coin is tossed it will land heads up?
A.
B.
0
C.
D.
1
Hint
2.
What are the odds of choosing a red marble from a bag that contains 20 red marbles, 15 yellow marbles, and 35 green marbles?
A.
2:5
B.
4:5
C.
2:7
D.
4:7
Hint
3.
A bag contains 10 blue marbles, 7 white marbles, 6 red marbles, and 2 green marbles. What is the probability of randomly selecting a blue marble?
A.
B.
C.
D.
Hint
4.
A weather forecaster states that the probability of rain is 30%. What are the odds that it will rain?
A.
B.
C.
D.
Hint
5.
A bag contains 7 purple marbles, 5 yellow marbles, 3 white marbles, and 1 black marble. What is the probability of randomly selecting a marble that is not purple?
A.
B.
C.
D.
Hint