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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

Respuesta :

The answer is 2.6 I think
MathPhys

Answer:

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

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