Introduction to Basic Probability Notation and Formulas

What does the symbol with curly brackets represent in set notation?

• A single element

• A universal set

• A collection of elements in a set

• An empty set

In set theory, what does the symbol 'Ω' denote?

• A complement

• A subset

• A universal set

• An empty set

What does the symbol '∈' signify in relational set theory?

• Is a member of

• Is a subset of

• Is a union of

• Is an intersection of

Which of the following represents the union of two sets A and B?

• A ∩ B

• A ∪ B

• A ⊆ B

• A ∈ B

How is the probability of an event A calculated when events are equally likely?

• Number of elements in A plus number of elements in the universal set

• Number of elements in A multiplied by number of elements in the universal set

• Number of elements in A divided by number of elements in the universal set

• Number of elements in A minus number of elements in the universal set

What is the probability of obtaining an 8 when two dice are rolled?

• 5/6

• 1/6

• 5/36

• 1/36

What is the probability of the universal set?

• 0

• 0.5

• 1

• Depends on the set

What is the probability of the empty set?

• 0

• 1

• 0.5

• Depends on the set

What is the range of probability values for any event?

• 1 to 2

• 0.5 to 1

• 0 to 1

• 0 to 0.5

What is the relationship between the probability of an event and its complement?

• Their difference is 1

• Their sum is 1

• Their product is 1

• They are equal