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Flashcards in Sets And Probability Deck (38)
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1
Q

R

A

Real numbers, the entire number line

2
Q

Q

A

Rational: numbers that can be written as a fraction of two integers

3
Q

Z

A

Integers: whole numbers ( + or - ) and 0

4
Q

N

A

Natural numbers: positive whole numbers and 0

5
Q

Q’

A

Irrational numbers: real number that cannot be written as a simple fraction

6
Q

A∩B

A

Intersection, (AND)

7
Q

A∪B

A

Union, (OR)

8
Q

A

Is an element of

9
Q

A

Not an element of

10
Q

Ø

A

Empty set

11
Q

U

A

Universal set

12
Q

A⊆B

A

Subset, A is a subset of B (set A is included within set B)

13
Q

A⊂B

A

Proper subset, A is a proper subset of B, (A is not equal to B, strictly smaller)

14
Q

n(A)

A

Number of elements in A

15
Q

A’

A

Compliment, compliment of A (not in A but in U)

16
Q

Disjoint

A

A and B do not share any elements

17
Q

Infinite

A

Can’t be listed

18
Q

Finate

A

Can be listed

19
Q

Tree diagrams are used for

A

Independent events

20
Q

|

A

Given that

21
Q

If outcomes do not effect each other

A

They are independent events

22
Q

If one thing is true but another isn’t…

A

There is no intersection, so they are mutually exclusive

23
Q

A set of branches in a tree diagram

A

Are mutually exhaustive as all possible outcomes are shown

24
Q

Multiply

A

Along the tree diagram branches

25
Q

Add

A

At the end of tree diagram branches

26
Q

Trial

A

Number of times an experiment is repeated

27
Q

Outcomes

A

Different results that are possible

28
Q

Event

A

A particular outcome

29
Q

Frequency

A

The number of times an outcome occurs

30
Q

Experimental frequency

A

The number of times an outcome occurs as a fraction of number trials

31
Q

To write down a set

A

Use curly brackets {}

32
Q

Empty and complete sets

A

Are always subsets

33
Q

Mutually exclusive events

A

Events that cannot occur at the same time

34
Q

Independent events

A

Events that do not effect each other’s outcome

35
Q

Probabilities should be

A

Fractions, decimals, or percentages

36
Q

Probabilities of exhaustive events

A

Should sum to 1

37
Q

In probability, OR means….

A

Addition (+)

38
Q

In probability, AND means….

A

Multiply (X)