UTA BIOL 2300 Biostats Final Review Rated A+

UTA BIOL 2300 Biostats Final Review Rated A+ Frequentist school of statistics - objective probabilities with frequency interpretation. - Prior knowledge is not incorporated. - Repeatable random events - probabilities aren't attached to hypotheses or fixed values Ex: flipping coin Bayesian school of statistics - subjective probabilities that represent degrees of belief - can be assigned to nonrepeatable events - prior knowledge IS incorporated - use probabilities to represent the uncertainty in an event of hypothesis Ex: hillary clinton winning 2016 election Statistics scientific study of numerical data collected from natural phenomena Science: experimentation, data gathering, data analysis and interpretation Statistics is set of mathematical methods used for performing ^^ said activities science activity encompassing the systematic study of the physical and natural world through observation and experimentation 1. To describe the things and events that are objects of scientific investigation. 2. To establish general laws or theories for which particular events are explained and predicted and thus scientifically understood. scientific method 1. observe 2. question 3. hypothesize 4. predict 5. design 6. conclude population According to the biologist definition, a population is where all individuals of the same species live in a defined location like a single habitat. A group of individuals that share the same gene pool For a statistician... a population might mean something different.. But regardless of how a statistician defines a population we almost always have to rely on SAMPLES sample A small, random part of the population that is tested and intended to show what the entire population is like. Quantitative variables numeric. They represent a measurable quantity. Discrete quantitative variable a variable that can take on a finite number of values Continuous quantitative variable a variable that can take on any value within its minimum and maximum value (a certain range). Categorical variables (qualitative variables) They take on values that are names or labels. measure of central tendency a summary statistic that represents the center point or typical value of a dataset. These measures indicate