Show:
Basic Probability
Theoretical Probability
Experimental Probability
Odds
Vocabulary
100

You flip a coin and roll a number cube. How many possible outcomes are in the sample space? 

12 possible outcomes

100
You toss a coin and roll a number cube. What is the probability that the coin shows tails and the number cube shows 5?
1/10
100
What is experimental probability based on?
the repeated trials of an experiment
100
What is the formula for: Odds in favor Odds against
odds in favor: number of favorable outcomes / number of unfavorable outcomes odds against: number of unfavorable outcomes / number of favorable outcomes
100
Complete the sentence: a number that describes the likelihood of an event is the _______ of the event.
probability
200

Fill in the blank: The __________ __ __ ______ is a measure of the likelihood, or chance, that the event will occur.

probability of an event

200
You and your friends have designed tees with emblems, and you are selling the tees to raise money. You have 10 green tees with gold emblems, 8 greens tees with pink emblems, 6 red tees with gold emblems, and 6 red tees with pink emblems. A student chooses a tee at random. What is the probability that the student chooses green pants with a pink emblem?
none.
200
Each section of a spinner is 1/4. There are 4 colors, red, blue green and gold. For which color is the experimental probability same as the theoretical probability? spinner results: red=5, green=9, blue=3, yellow=3
Red, because 5/20=1/4
200
There is a spinner with four colors: red, green, yellow, and blue. Find the ODDS AGAINST stopping on green.
3 / 1 OR 3:1
200
Complete the sentence: A possible result of an experiment is an _________.
outcome
300
Find the number of possible outcomes: A bag contains four red cards numbered 1-4, 4 white cards numbered 1-4, and 4 black cards numbered 1-4. You choose a card at random.
12 outcomes
300
How is the probability of an event A written as?
P(A)
300
What is the formula for experimental probability?
number of successes / number of trials
300
The odds in favor of an event are 5 : 8. What are the odds against the event?
8 : 5
300
Complete the sentence: A(n) ______ is an outcome or collection of outcomes, such as rolling n odd number.
event
400
A spinner has the numbers: 4, 30, 6, 9,12, 15, 18, 21,27 and 24. What is the probability that the spinner stops on a multiple of 3?
9/10
400
You and your friends have designed tees with emblems, and you are selling the tees to raise money. You have 10 green tees with gold emblems, 8 greens tees with pink emblems, 6 red tees with gold emblems, and 6 red tees with pink emblems. A student chooses a tee at random. What is the probability that the student chooses a red tee?
You and your friend have a total of 30 tees, so there are 30 possible outcomes. Of all the tees, 12 tees are red. There are 12 favorable outcomes. number of red tees / total # of tees = 2/5
400
OPEN ENDED: Describe a real world event whose probability is 0. Describe another real world event whose probability is 1.
rolling a standard number cube and getting a 0, flipping a coin and getting heads/tails
400
A spinner has the numbers: 4, 30, 6, 9,12, 15, 18, 21,27 and 24. What are the odds in favor of stopping on a multiple of four?
3/7 or 3 : 7
400
The set of all possible outcomes is called a(n) __________ _______.
sample space
500
A spinner has the numbers: 4, 30, 6, 9,12, 15, 18, 21,27 and 24. You spin the spinner 10 times. It stops on an even number 6 times. What is the experimental probability of stopping on an even number?
6 / 10
500
What is the formula for finding the theoretical probability?
number of favorable outcomes / total number of outcomes
500
Each section of a spinner is 1/4. There are 4 colors, red, blue green and gold. The experimental probability are as follows: Red=5, green=9, blue=3, yellow=3. For what color is the experimental probability of stopping on the color greater than the theoretical probability?
green, because 5 < 9
500
A spinner has the numbers: 4, 30, 6, 9,12, 15, 18, 21,27 and 24. Describe and correct the error in finding the odds in favor of stopping on a multiple of three. number of favorable outcomes / total number of outcomes = 2/10 = 1/5
there are 3 favorable outcomes, not 2. 3/10 is the correct answer
500
What is the difference between theoretical probability and experimental probability?
Experimental probability is based on trials, while theoretical probability are based on likely outcomes.