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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)
  1. 12 October, 11:56
    0
    The answer is 2.6 I think
  2. 12 October, 12:29
    0
    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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