**Daily update | 25 January, 2023**

# StackExchange

#### Given that X and Y are normally distributed as N(0,3) and N(0,5) respectively, what is the expected value of (XY)^2?

**Source:** stats**Views:** 214**Score:** 4**Tags:** normal-distribution expected-value

#### Why is the median of an even number of samples the arithmetic mean?

**Source:** stats**Views:** 74**Score:** 3**Tags:** mean median

#### Is AUROC sample size-unbiased

**Source:** stats**Views:** 16**Score:** 2**Tags:** sample-size model-evaluation roc unbiased-estimator small-sample

#### Related variables but no causal link: how to analyze it?

**Source:** stats**Views:** 17**Score:** 2**Tags:** causality biostatistics causal-diagram

#### Interpreting standard errors from predict function in regression

**Source:** stats**Views:** 24**Score:** 2**Tags:** regression generalized-linear-model predictive-models standard-error