Elementary Bio Stats with Khan

statistics

science which helps collect, summarize, analyze, and interpret information (data)

descriptive data

consists of numerical methods and tables, graphs. rmb to always question data

how to get average aka mean

sum of value/amt of values

inferential stats

helps infer about the unknown using known info
helps infer about the population using sample info

population

totality of what you are interested in

census

complete account of the population (cannot be done constantly)

parameter

quanifies the attributes/characteristics of population, usually unknown

what is mew mu

population average

sample

subset of the population

what is x with line on top

average from the sample, can use to get mew mu

to compute smth from the sample is?

a statistic (NO S AT END)

random sampling

everything has some chance of selection

simple random sampling

everything has an equal chance of selection