What is the process that allows researchers to make an observation.
Experiment
100
What is the probability of selecting a student who got an A or B on a test?
2/5
100
In a bag there are 3 red marbles, 5 green marbles, and 2 blue marbles. What is the probability of picking a green marble, not replacing it, and picking a blue one.
.111
100
Used when there is an equal chance of occuring.
# of ways "A" can occur
P(A)= ---------------------------
Total # of Outcomes
Theoretical Probability
100
How many times should an experiment be performed for the Law of Large Numbers to take effect.
At least 100 times.
200
An outcome that cannot be broken down any further.
Simple event.
200
If the probabilty of driving over the speed limit is 45%, what is the probabilty of the next 4 drivers speeding
.0410
200
What is the probability of drawing a queen from a deck of cards, not replacing it, and drawing a 2.
.006
200
The occurance of one event makes it more probable for another.
Dependent event
200
A list of every outcome that could come out an event.
Sample space
300
List the sample space for flipping a coin twice.
{HH,HT,TT,TH}
300
What are the odds against rolling a 5 when a single die is rolled?
5:1
300
What is the complement of 2/3?
1/3
300
Events that are unable to occur at the same time.
Mutually Exclusive
300
What is the probability of pulling an ace from a deck of cards or a diamond?
16/52
400
On an SAT test with 5 possible answers, what is the probability of guessing a question right?
1/5
400
What is the probability of rolling an odd number on a die, and flipping a heads on a coin.
.25
400
What is the probability of rolling a 4 on a die and picking a red card from a standard deck of cards?
.0833
400
Preparing an experiment over and over to get the experimental probability close to theoretical probability.
Law of Large Numbers
400
How many ways can a group of 5 people be chosen from a pool of 20?
1,860,480
500
What is the difference between the relative frequency approach and a classical approach to finding probability.
Relative frequency approach is experimental, classical approach is theoretical.
500
On a daily number drawing with three numbers, what are the odds of betting on 732 and winning?
1:999
500
If you're selecting a group for jury from 15 men and 10 women, what is the probability of selecting 2 men?
.35
500
Conduct an experiment with a large number of trials.
# of times "A" occured
P(A)= ----------------------------
total number of trials
Experimental probability.
500
Aaron has 6 autographed baseballs and room for 4 in his display case. How many arrangements can he make?