Question

Arithmetic mean of -4,-3,-2,-1,0 ,1, 2, 3 is

(a)-1

(b)1

(c)
$\frac{ - 1}{2}$
(d)

$\frac{1}{2}$
​

Answer 1

Answer:

sum of observations=-4-3-2-1+0+1+2+3

=–10+6=–4

number of obs.=8

so, mean=–4/8=–1/2

(c)-1/2

Answer 2

Answer:

mean =sum/no.

mean = -4/8 = -1/2

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