# Statistics ## Common Terminology ![[Pasted image 20240708120117.png|353]] A population is a group of phenomena that have something A parameter is a characteristic of a population. A statistic is a characteristic of a sample. ## Types of Statistics ### Inferential vs Descriptive The field of inferential statistics enables you to make educated guesses about the numerical characteristics of large groups. ### Frequentist vs Bayesian > See also: > - [[Bayesian Statistics]] The vast majority of statistics we learn is from a **frequentist** standpoint. On the other hand, the Bayesian approach Hypothesis ($H$) → any belief $P(H)=0.3$ → prior probability we might observe some evidence, $e$, that influences our degree of belief in our hypothesis ### Regression **Logistic regression** is a statistical modeling technique that estimates the relationship between the predictors and the probability of the event occurring. - Used for classification and prediction tasks. https://biostatsquid.com/volcano-plot/