A bag contains 11 blocks numbered from 1 to 11. Two blocks are selected from the bag at the same time.

Let event E = the two numbers are NOT even.

How many outcomes are in the complement of E?

A)

10

B)

20

C)

70

D)

90

Question

Mathematics

Scarlet Guerra

7 February, 08:44

A bag contains 11 blocks numbered from 1 to 11. Two blocks are selected from the bag at the same time.

Let event E = the two numbers are NOT even.

How many outcomes are in the complement of E?

A)

10

B)

20

C)

70

D)

90

+3

Answers (1)

Know the Answer?

Douglas Lin · Answer 1

Event E is the two numbers are not even.

The complement of event E is the two numbers are even.

The number of outcomes of the complement of event E is 5 * 4 = 20, but since the outcome 2, 4 is the same as the outcome 4, 2, you need to divide the number of outcomes by 2.

Answer: 10

A bag contains 11 blocks numbered from 1 to 11. Two blocks are selected from the bag at the same time.Let event E = the two numbers are NOT even.How many outcomes are in the complement of E?A)10B)20C)70D)90

A bag contains 11 blocks numbered from 1 to 11. Two blocks are selected from the bag at the same time.

Let event E = the two numbers are NOT even.

How many outcomes are in the complement of E?

A)

10

B)

20

C)

70

D)

90