20) The mean of x+2, X+3, X+4 and x-2 is: a. (X+7)/4
b. (2x+7)/4
C. (3x+7)/4
A. (4x+7)/4
Answers
Answered by
2
Answer:
A
because sum of all observations by no of observations is equal to mean formula
that's it ! thank u bye have a good day
Answered by
1
Answer:
answer is A
Step-by-step explanation:
(x + 2)+(x + 3) = x+5
(x + 5)+(x+4) = x+9
(x + 9)+(x - 2) = x + 7
there are 4 :)
so divide it by 4
= (x+7)/4
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