Question

the mean of d-2,d,d,d+2, is
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Answer 1

Answer:

mean is d

Step-by-step explanation:

$mean = \frac{total \: no. \: of \: values}{no. \: of \: values}$

$\frac{d-2+d+d+d-2}{4} = \frac{4d}{4} = d$