Given a set {4, -2, -12, 5, x},

Samara Richard

Samara Richard

Answered question

2022-03-25

Given a set {4, -2, -12, 5, x}, for what x would the mean of the set be -5?

Answer & Explanation

crazyrocketrz5z

crazyrocketrz5z

Beginner2022-03-26Added 11 answers

a=1ni=1nai (the mean of a set of n data points)
5=15i=15ai
x122+4+55=5
Multiply both sides by 5
5x122+4+55=5(5)
x5=25
Add 5 to both sides
x-5+5=-25+5
x=20

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