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Maths > Unit 10 - Probability > Flashcards

Unit 10 - Probability Flashcards

1
Q

What is the equation for probability?

A

Successful outcomes divided by total number of outcomes.

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2
Q

What is probability always between?

A

1 and 0

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3
Q

What can probability be displayed as?

A

A decimal
Fraction
Or percentage

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4
Q

What are TWO diagrams for probability?

A

Sample space diagram
Tree diagram
Venn diagram

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5
Q

What is an independent event?

A

When one event happens, it doesn’t affect another.

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6
Q

What are mutually exclusive events?

A

When two events can’t happen at the same time.

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7
Q

What happens the more times you do an experiment?

A

It becomes more accurate.

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8
Q

What does the AND rule mean?

A

You MULTIPLY them.

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9
Q

What does the OR rule mean?

A

You ADD THEM.

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10
Q

What is a sample space diagram?

A

A table showing all the possible outcomes.

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11
Q

What is experimental probability?

A

When you do an experiment several times to get more results for more accuracy in order to prove your prediction.

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12
Q

What is the equation for the relative frequency?

A

Number of successful trials divided by the total number or trails.

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13
Q

What is the expected probability?

A

What you expect the probability to be.

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14
Q

What is the equation for expected probability?

A

Probability x number or trails.

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15
Q

What is a Venn diagram?

A

Two circles displaying probability.

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16
Q

What is the name for the whole of a Venn diagram?

A

A UNIVERSAL SET.

17
Q

What is the intersection on a Venn diagram?

A

Where A and B cross.

18
Q

What is the Union in a Venn diagram?

A

Everything in A, B and in the intersection.

19
Q

What happens if the letter has a dash by it?

A

Then it is everything BUT that thing.

20
Q

What is a Venn diagram written as?

A

SET NOTATION.

21
Q

What must each branch add to on a tree diagram?

A

1

22
Q

What is a key rule for tree diagrams?

A

MULTIPLY ACROSS

ADD DOWN.

23
Q

What happens if he person puts the thing back?

A

Then the next branch isn’t reduced by anything.

Maths (11 decks)

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