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1、1. equation方程式,等式 3 x 2 = 6 is an equation.X1=X2=X3X4X5X6123456f(x1)f(x2)f(x3)f(x4)f(x5)f(x6)1/61/61/61/61/61/6求一次擲1個骰子出現點數和的集中趨勢(平均數期望值）答案等於3.5X1=X2=X3X4X5X6123456f(x1)f(x2)f(x3)f(x4)f(x5)f(x6)1/61/61/61/61/61/61/62/363/64/65/66/6X1=X2=X3X4X5X6X7X8X9X10X1123456789101112f(x1)f(x2)f(x3)f(x4)f(x5)f(x6
2、)f(x7)f(x8)f(x9)f(x10)f(x11)1/362/363/364/365/366/365/364/363/362/361/36求一次擲2個骰子出現點數和的集中趨勢(平均數期望值）答案等於七X1=X2=X3X4X5X6X7X8X9X10X1123456789101112f(x1)f(x2)f(x3)f(x4)f(x5)f(x6)f(x7)f(x8)f(x9)f(x10)f(x11)1/362/363/364/365/366/365/364/363/362/361/36X1=X2=X3X4X5X6X7X8X9X10X1123456789101112f(x1)f(x2)f(x3)f(x4)f(x5)f(x6)f(x7)f(x8)f(x9)f(x10)f(x11)1/362/363/364/365/366/365/364/363/362/361/362/366/3612/3620/3630/3642/3640/3636/3630/3622/3612/362 6 12 20 30 42 40 36 30 22 12 252 /36252/36=7答案等於七
