Whakaoti i te 0.3*0.4*0.3+0.7*0.7*0.4+0.7*0.3*0.4

$$0.3 \times 0.4 \times 0.3+0.7 \times 0.7 \times 0.4+0.7 \times 0.3 \times 0.4$$

Aromātai

$$0.316$$

Ngā Upane Otinga

Whakareatia te 0.3 ki te 0.4, ka 0.12.

$$0.12\times 0.3+0.7\times 0.7\times 0.4+0.7\times 0.3\times 0.4$$

Whakareatia te 0.12 ki te 0.3, ka 0.036.

$$0.036+0.7\times 0.7\times 0.4+0.7\times 0.3\times 0.4$$

Whakareatia te 0.7 ki te 0.7, ka 0.49.

$$0.036+0.49\times 0.4+0.7\times 0.3\times 0.4$$

Whakareatia te 0.49 ki te 0.4, ka 0.196.

$$0.036+0.196+0.7\times 0.3\times 0.4$$

Tāpirihia te 0.036 ki te 0.196, ka 0.232.

$$0.232+0.7\times 0.3\times 0.4$$

Whakareatia te 0.7 ki te 0.3, ka 0.21.

$$0.232+0.21\times 0.4$$

Whakareatia te 0.21 ki te 0.4, ka 0.084.

$$0.232+0.084$$

Tāpirihia te 0.232 ki te 0.084, ka 0.316.

$$0.316$$

Tauwehe

$$\frac{79}{2 \cdot 5 ^ {3}} = 0.316$$