The mean of x-1,x+1,x+3and x+5 is
option
1 x+1
2 x+2
3 x+3
4 x+4
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Step-by-step explanation:
Mean = sum of observation / total number of observation
= x-1 + x+1 x+3 + x+5 / 4
= 4x + 8 / 4
= 4(x + 2)/4
= x + 2
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