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Question 1

Probability A is?

Answer 1

Proportion of times the event would occur if we repeated/observed the experiment an infinite number of times.

Question 2

Can the probability of an event A be larger or smaller than 0?

Answer 2

No

Question 3

If you don’t know anything about the event, then P(A) = 1 is? why? 2•

Answer 3

•Almost certain
•Probability is a limit, so its a horizontal asymptote

Question 4

The probability of the sample space to occur is?

Answer 4

Always 1

Question 5

Relative frequency approximation?

Answer 5

An estimate of the probability of A where a random experiment is repeated independently n times.

Question 6

Law of Large Numbers

Answer 6

As more observations are collected, the proportion of occurrences within a particular event converges to the probability of that event.

Question 7

Assumptions for calculating probability? 2•

Answer 7

•A random experiment is said to have a FINITE sample space if the sample space contains a FINITE number of possible outcomes.

•A finite sample space with equally likely outcomes is a finite sample space with n distinct outcomes where each individual outcome has a probability of 1/n.

Question 8

If you have two disjoint events, then P(A) P(B), the probability that at least one of them will happen is equal to?

Answer 8

The sum of the individual probabilities.

Question 9

If you have a probability that does not have equally likely events, what can you do?

Answer 9

Find a way to convert it to equally likely events.

Question 10

!!!Addition rule in probability?

Question 11

Complement rule in probability if event A?

Answer 11

Probability that A does not happen is equal to one minus the probability that event A does occur.