mean(25,30) eching

$$mean(25,30)$$

Baholash

$$\frac{55}{2}=27,5$$

Yechim qadamlari

25,30 to‘plamining o‘rtachasini topish uchun avval a‘zolarni birgalikda qo‘shing.

$$25+30=55$$

25,30 to‘plamining o‘rtachasi a‘zolarining yig‘indisini a‘zolari soniga bo‘lish bilan aniqlangan va bu holatda 2.

$$\frac{55}{2}$$

Omil

$$\frac{5 \cdot 11}{2} = 27\frac{1}{2} = 27,5$$