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有限数学示例统计分布

求平均值

$n = 20$ , $p = 0.3$

解题步骤 1

二项分布的平均值等于试验次数乘以概率。

$μ = n \cdot p$

解题步骤 2

填入已知值。

$μ = 20 \cdot 0.3$

解题步骤 3

将 $20$ 乘以 $0.3$ 。

$μ = 6$

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统计分布

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