Section 1.1: Statistics Basics

_________consists of methods for________ and_________information

Descriptive, Organizing, Summarzing

Organizing Data:

Tables

charts

graphs

Calculation about data

averages

variation

percentiles

Population

the collection of all individuals or items under consideration
in a statistical study.

Sometimes getting information about a population is
difficult or impossible so instead we carefully choose
a sample

Inferential Statistics

consists of methods for drawing and measuring the reliability of
conclusions about a population based on information obtained from a sample of the
population.

Descriptive Studies

to examine and explore information for its own intrinsic interest.

A descriptive study may be preformed on a sample or a population

Inferential Studies

drawing conclusions about a population based on information from a sample