sample mean

短语

[计] 样本平均值 [化] 样本均值; 样本平均值

词形变化

sample means 复数 sample means

释义与例句

n.
  1. 1.

    Given a random sample mathbf x₁,…, mathbf x_N from an n-dimensional random variable mathbf X, a mean defined as

    数学

    mathbf ̄x=1/N∑ₖ₌₁ᴺ mathbf xₖ.