Math 9c Midterms Flashcards
numerical facts that can be a reference or information
data
geting infos from datas -> new understanding
statistics
knowledge communicated from facts
infromation
TWO WAYS TO DO STATISTICS
- Descriptive statistics
- Inferential statistics
graphical summaries and numerical techniques
descriptive statistics
predicts, make conclusions based on a sample of the population
inferential statistics
collection of all possible individuals/objects
population (N)
numerical measurement describing some characteristics of a population
parameter
portion or part of the population
sample (n)
numerical measurement describing some characteristics of a sample
statistic
getting sample from a population
sampling
driving to conclusion about a population based on a sample
inference
data from the entire population
census
estimate population mean weight based on a sample
estimation
test the claim
hypothesis testing