**Daily update | 19 July, 2022**

# StackExchange

#### Improving a forest model by dropping features below a percent importance threshold?

**Source:** stats**Views:** 68**Score:** 3**Tags:** random-forest feature-selection boosting feature-engineering importance

#### Inclusion of polynomial term in multiple linear regression

**Source:** stats**Views:** 65**Score:** 3**Tags:** regression multiple-regression predictor polynomial

#### How would you justify to a non-statistician why we should use an unbiased estimator instead of a maximum likelihood estimator?

**Source:** stats**Views:** 23**Score:** 3**Tags:** maximum-likelihood estimators unbiased-estimator communication

#### What is the distribution of a random mixture of gamma random variables?

**Source:** stats**Views:** 9**Score:** 2**Tags:** gamma-distribution mixture-distribution

#### Packages for experiment design with multiple levels?

**Source:** stats**Views:** 6**Score:** 2**Tags:** r experiment-design quality-control