Probability Flashcards Preview

Statistics for Dummies > Probability > Flashcards

Flashcards in Probability Deck (15):
1

What does low probability mean?

That something is a rare or unusual occurrence

2

What is an event?

And event is a collection of outcomes from a procedure like the role of a die.

3

What is a simple event?

A simple event is a single, specific outcome of an event for example the results of one roll of a die.

4

What is sample space?

Everything that could possibly happen every single event for example all the possibilities of a die roll.

5

What is the probability?

The likelihood of an event occurring.

6

What does P(A) mean?

The probability of event A actually occurring.

7

What are three types of probability?

Observed probability, classical probability, subjective probability

8

What is observed probability?

Refers to the probability of events that already happened.

9

What is classical probability?

What should happen based on each simple event having an equal chance of occurring.

10

What is subjective probability?

Probability estimate based on an educated guess.

11

What are two features of probability?

A probability is always positive and between zero and one.

12

What is the law of large numbers?

The more observations made, the closer you can get to classical probability.

13

What are complementary events?

Events that are mutually exclusive.

14

What are compound events?

And event which joins two or more simple events.

15

What does disjoint mean?

The events are mutually exclusive, such as rolling two numbers on the same die.