A clothing store posts advertisements via social media. The probability model describes the number of times the company may post in a day.

Social Media Posts 0 1 2 3 4 5

P (X) 0.05 0.1 0.35 0.25 0.2 0.05

How many posts would you expect the company to post each day?

3.4

3.05

2.6

2.45

2.1

Question

Mathematics

Caprice

12 October, 10:08

A clothing store posts advertisements via social media. The probability model describes the number of times the company may post in a day.

Social Media Posts 0 1 2 3 4 5

P (X) 0.05 0.1 0.35 0.25 0.2 0.05

How many posts would you expect the company to post each day?

3.4

3.05

2.6

2.45

2.1

+1

Answers (2)

Know the Answer?

William Fleming · Answer 1

William Fleming 12 October, 11:56

0

The answer is 2.6 I think

Donna Wolf · Answer 2

2.6

Step-by-step explanation:

The expected value is the sum of each probability multiplied by the value.

E (X) = 0.05 (0) + 0.1 (1) + 0.35 (2) + 0.25 (3) + 0.2 (4) + 0.05 (5)

E (X) = 2.6

A clothing store posts advertisements via social media. The probability model describes the number of times the company may post in a day.Social Media Posts 0 1 2 3 4 5P (X) 0.05 0.1 0.35 0.25 0.2 0.05How many posts would you expect the company to post each day?3.43.052.62.452.1

A clothing store posts advertisements via social media. The probability model describes the number of times the company may post in a day.

Social Media Posts 0 1 2 3 4 5

P (X) 0.05 0.1 0.35 0.25 0.2 0.05

How many posts would you expect the company to post each day?

3.4

3.05

2.6

2.45

2.1