Practice: Unions, Intersections, & Complements

Front

What is the union of two sets A and B?

Back

The union of two sets A and B, denoted as A ∪ B, is the set of elements that are in A, in B, or in both.

Tags

CCSS.HSS.CP.A.1

Front

What is the intersection of two sets A and B?

Back

The intersection of two sets A and B, denoted as A ∩ B, is the set of elements that are in both A and B.

Front

What is the complement of a set A?

Back

The complement of a set A, denoted as A', is the set of all elements in the universal set that are not in A.

Tags

CCSS.HSS.CP.A.1

Front

Define a certain event in probability.

Back

A certain event is an event that is guaranteed to occur, with a probability of 1.

Tags

CCSS.7.SP.C.5

Front

What does it mean for two events to be mutually exclusive?

Back

Two events are mutually exclusive if they cannot occur at the same time; the occurrence of one event excludes the occurrence of the other.

Tags

CCSS.HSS.CP.A.1

Front

How do you calculate the probability of the union of two events A and B?

Back

P(A ∪ B) = P(A) + P(B) - P(A ∩ B) where P(A ∩ B) is the probability of both events occurring.

Tags

CCSS.HSS.CP.B.7

Front

What is the probability of an event that is impossible?

Back

The probability of an impossible event is 0.

Tags

CCSS.7.SP.C.5

Front

If a spinner has 8 equal sections, what is the probability of landing on one specific section?

Back

The probability of landing on one specific section is 1/8.

Tags

CCSS.7.SP.C.7A

Front

What is the formula for calculating the probability of the intersection of two independent events A and B?

Back

P(A ∩ B) = P(A) * P(B) for independent events.

Tags

CCSS.HSS.CP.A.2

CCSS.HSS.CP.A.4

Front

What does P(D or E) represent in probability?

Back

P(D or E) represents the probability that event D occurs, event E occurs, or both events occur.

Tags

CCSS.HSS.CP.B.7