Longer answers
No. 1
Find the losing probability fraction and the winning probability fraction. The odds against an event occurring are then expressed as a ratio of lose:win.
No. 4
5/14
No. 6
1/6
No. 9
93/103
No. 8
4/13
No. 2
Probability is a comparison between the number of favorable outcomes and the number of possible outcomes.
No. 5
1/5
No. 7
4:9
No. 10
11/51
Two cards are drawn with replacement. What is the probability that both at hearts?
1/16
No. 3
The condition reduces the number of possibilities.
What is the probability of choosing a numbered card from a regular deck of playing cards.
9/13
What are the odds in favor of picking a face card from a regular deck of playing cards?
3:10
No. 11
11/50
Two cards are drawn without replacement. What is the probability that both at hearts?
3/51