**Daily update | 08 June, 2022**

# StackExchange

#### Why does a zero entry in the inverse covariance matrix of a joint Gaussian distribution imply conditional independence?

**Source:** stats**Views:** 19**Score:** 4**Tags:** probability normal-distribution covariance

#### Correct Interpretation for One-tailed Hypothesis with Inverse Result

**Source:** stats**Views:** 82**Score:** 3**Tags:** hypothesis-testing statistical-significance

#### Sampling Distribution of Reciprocal of Sample Mean

**Source:** stats**Views:** 94**Score:** 3**Tags:** probability distributions normal-distribution sampling inference

#### How to find the gradient when a Black box I/O function is involved in evaluation of the loss?

**Source:** stats**Views:** 21**Score:** 2**Tags:** neural-networks reinforcement-learning loss-functions stochastic-gradient-descent

#### Why should i care about independent triangular arrays?

**Source:** stats**Views:** 15**Score:** 2**Tags:** random-variable independence central-limit-theorem