What is the volume, in cubic cm of the object?

No attachment so here are the formulas for calculation:

Formula for volume square or rectangle cube V=l*w*h

Formula for volume cylinder  V=r^2*(pi)*h   I prefer to plug in 3.14

Formula for volume of a sphere V=r^3*(pi)*(4/3)

4

Step-by-step explanation:

Given the data:

X : 20,25,30,20,30

Mean absolute deviation :

Σ(x - xbar) / n

n = sample size = 5

xbar = ΣX / n = (20+25+30+20+30) /5

xbar = 25

((20-25) + (25-25) + (30-25) + (20-25) + (30-25)) / 5

We take the absolute values, hence, negative signs are ignored :

(5 + 0 + 5 + 5 + 5) / 5

20 / 5

= 4