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Probability & Statistics Definitions

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Browse our growing collection of probability & statistics definitions:

平均

平均值是作为数字列表代表的单个数字。在不同的上下文中使用不同的平均概念。

志 (Χ, χ)

Chi (Χ, χ) 是希腊字母表的第 22 个字母,用于表示古希腊语和现代希腊语中的 ch 音(如苏格兰 loch 或德语 Bauch)。在希腊数字系统中,它的值为 600。

十分位数

十分位数是将排序数据分成十个相等部分的九个值中的任何一个,因此每个部分代表样本或总体的十分之一。十分位数是分位数的一种可能形式。

事件

事件是概率空间的某个子集。因此,事件是分配了概率的结果的集合。

高四分位数

The high quartile given a set of data, is a number for which 75% of the data is less than that number. The high quartile is the same as the median of the part of the data which is greater than the median.

高四分位数

The higher quartile given a set of data, is a number for which 75% of the data is less than that number. The higher quartile is the same as the median of the part of the data which is greater than the median.

不可能事件

不可能事件是发生概率为零的事件。

亩(μ,μ)

Mu (Μ, μ) 或 my 是希腊字母表的第 12 个字母。在希腊数字系统中,它的值为 40。

圆周率 (Π, π)

Pi(Π,π)是希腊字母表的第十六个字母,代表音[p]。在希腊数字系统中,它的值为 80。

第一季度

The Q1 given a set of data, is a number for which 25% of the data is less than that number. The Q1 is the same as the median of the part of the data which is less than the median.

第三季度

The Q3 given a set of data, is a number for which 75% of the data is less than that number. The Q3 is the same as the median of the part of the data which is greater than the median.

西格玛 (Σ, σ)

Sigma (Σ, σ) 是希腊字母表的第十八个字母。在希腊数字系统中,它的值为 200。在一般数学中,大写 Σ用作求和的运算符。

Theta (Θ, θ)

Theta (Θ, θ) 是希腊字母的第八个字母,源自腓尼基字母 Teth。在希腊数字系统中,它的值是 9。

第三四分位数

The third quartile given a set of data, is a number for which 75% of the data is less than that number. The third quartile is the same as the median of the part of the data which is greater than the median.

上四分位数

The upper quartile given a set of data, is a number for which 75% of the data is less than that number. The upper quartile is the same as the median of the part of the data which is greater than the median.

加权平均

加权平均或加权算术平均类似于普通算术平均(最常见的平均类型),不同之处在于它用于计算一组数字的一种算术平均,其中该组的某些元素携带更多重要性(权重、频率或相对重要性)。

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