Probability with a Deck of Cards
Probability with Dice
Probability Vocabulary
Theoretical vs.
Experimental
Experimental
Probability Potluck
100
Probability of drawing a 2 (as a percent)
19%
100
the probability of rolling a 2 (give answer as a fraction)
1/6
100
the ratio of the number of ways an event can occur to the total number of equally likely outcomes
Theoretical Probability
100
Mr. Barker found the probability of drawing a spade to be 1/5 or 20%. Did he find the theoretical or experimental probability?
Experimental Probability
100
Given a 4 color spinner with equal parts (red, blue, yellow, green) what is the probability of spinning red?
1/4 or 25%
200
Probability of drawing the Queen of Hearts?
1/52
200
Probability of an even number or a 1
(give as a percent)
67%
200
Events that have no influence on each other
Independent
200
Probability of flipping heads twice in a row (as a fraction)
1/4
200
You have a bag of marbles, four red and five green. What is the probability of choosing red?
(4/9) or 44%
300
Probability of drawing a 2,3 or 4 (as a fraction)
3/13
300
Probability of rolling an 8 on a single die
0
300
The ratio of actual outcomes to the total number of possible outcomes in repeated trials
Experimental Probability
300
What is the theoretical probability of landing on green or blue?
1/2 or 50%
300
Given a 4 color spinner with equal parts (red, blue, yellow, green), the probability of spinning red then blue (as a fraction)
1/16
400
Probability of pulling any 4 OR a heart (as a fraction)
4/13
400
probability of rolling a 5, then a 2 (as a fraction)
1/36
400
The second event is influenced by the first event
Dependent
400
What is the experimental probability of landing on green or blue?
3/8 or 38%
400
the theoretical probability of rolling a one THEN picking a red card out of a deck of cards
1/12 or 8%
1/6 * 1/2 (half of cards are red so 1/2)
500
the probability of flipping a coin to heads, then rolling a 3 on a die (as a fraction)
1/12
500
the probability of rolling a six then a number less than 3 (as a fraction)
1/18
500
what we expect to happen mathematically
Theoretical probability
500
What is the theoretical probability of not landing on green?
3/4 or 75%
500
What is the theoretical probability of picking a purple marble?
2/11 or 18%
600
Probability of not an ace (as a percent)
92%
600
When rolling two dice, the probability that the sum is NOT 12. (as a fraction)
(Recall, there are 36 possible ways to roll 2 dice.)
35/36
600
After repeated trials the experimental probability should get _________ to the theoretical probability
closer
600
What is the experimental probability of not landing on green?
17/20 or 85%
600
What is the probability of landing on a green, then pulling a red marble, then spinning not orange?
15/176 or 9%