Respuesta :

Answer:

8

Step-by-step explanation:

The mean is calculated as

mean = [tex]\frac{sum}{count}[/tex]

let x be the required number , then

[tex]\frac{3-8+5+x}{4}[/tex] = 2 ( multiply both sides by 2 to clear the fraction )

0 + x = 8 , so

x = 8

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