**Daily update | 21 June, 2022**

# StackExchange

#### Can an irrelevant variable be significant in a regression model?

**Source:** stats**Views:** 351**Score:** 6**Tags:** regression statistical-significance least-squares econometrics

#### Why symmetric trees are not used in xgboost

**Source:** stats**Views:** 115**Score:** 5**Tags:** boosting cart

#### Why is { w | |w| mod 3 = #_a(w) mod 3 } a Regular Language?

**Source:** cs**Views:** 362**Score:** 2**Tags:** formal-languages regular-languages automata finite-automata context-free

#### Using k-means to create labels for supervised learning

**Source:** datascience**Views:** 23**Score:** 2**Tags:** clustering unsupervised-learning k-means supervised-learning labels

#### Maximum Likelihood Estimator for Bernoulli distribution

**Source:** stats**Views:** 26**Score:** 1**Tags:** maximum-likelihood inference likelihood