(1) 564 800 ≈0.71, 701 1000 ≈0.70; (2)如图所示:(3)当转动转盘的次数n很大时,概率将会接近(0.68+0.70+0.71+0.69+0.71+0.70)÷6≈0.70.故答案为:0.70.