Question

The ________ of an event A is the collection of all outcomes in the sample space that are not in A.

Fill in the blanks.

Answer 1

The complement of an event A is the collection of all outcomes in the sample space that are not in A.

Explanation:

We have to fill the sentence in the given question:

Complement of an event:

• Let A be an event, then complement of an event is defined as the the event with outcome not in A.
• It is represented as A'

• We can write
  `P(A') = 1- P(A)`

• 
  `P(A) + P(A') = 1`

Thus, we can fill the bank as

The complement of an event A is the collection of all outcomes in the sample space that are not in A.