An unloaded die; has a 1/6 chance of rolling any side
What is a fair die?
What is a Venn diagram?
The circles
If there are a total of 12 students, with 5 preferring mahogany and 7 preferring balsa, what is the probability that a student prefers balsa wood over mahogany?
7/12; 58%
P(AuB)
What is the equation for the probability of an OR event?
P(A)=
n(A)/n(U)
The study of randomness
What is probability theory?
If P(A)=0.3, P(AuB)=0.6 and P(AnB)=0.5, find P(B)
0.8
P(AnB)
What is the equation for the probability of an AND event?
What equation is used to find B given A?
P(BnA)/P(A)
The event that is not occurring
What is a complement?
What is a Lattice diagram?
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If P(A)=0.2, P(B)=0.5 and P(AnB)=0.4, find P(AuB)
0.3
P(AnB)=P(A)*P(B)
What are Independent Events?
Total number of outcomes
n(U)
Both X and Y
What is an intersection?
The number outside of a Venn diagram
None; the group that does not interact with the others
For an independent event, if the probability of a student preferring lead poisoning is 70% and the probability of a student preferring a collapsed lung is 30%, what is the probability of P(AnB)?
0.21
P(AuB)=P(A)+P(B)
P(AuB)=0
What are Mutually Exclusive Events?
P(A)+P(A`)=1
What are complementary events?
Disjointed
What is mutually exclusive?
Visual representations that represent sections of a ratio by using rectangles
What is a tape diagram?
Two events; If P(AnB) is 0.43 and the probability of event A is 0.55, what is P(A|B)?
0.95556
A given B
What does F(A|B) mean when describing probability?
If a human being rolls an unfair and very biased die, that has a 30% chance of rolling a 6, a 28% chance of rolling a 1 and a 10.5% chance for any number other than a 6 or 1, what would be the minimum total rolls necessary for the cumulative number the dice rolled to be 89, and what would be the chance of it occurring?
15; 5.022 E-9