Elementary Statistics –
Study Guide, Key
Concepts, Formulas &
Practice Questions
Updated Questions and Answers
100% Verified Exam Prep and Comprehensive
Rationales
Included
, Data Values, Measurements or observations, that the variables can assume
Data Set Collection of data values forms
descriptive statistics the collection, organization, summarization, and presentation of data
inferential statistics generalizing from samples to populations, performing estimations and hypothesis
tests, determining relationships among variables, and making predictions
population All subjects, humans or otherwise, that are being studied
sample a group of subjects selected from a population
hypothesis testing Inferences based on probability theory
Steps of descriptive statistics Variables chosen
data is organized
summary is provided
presentation of data
steps of inferential statistics hypothesis testing
relationships among variables
make predictions
frequency polygon line graph with points plotted for frequencies at the midpoints, frequencies are the
heights of the points
statistics the science of conducting studies to collect, organize, summarize, analyze, and
draw conclusions from data
variable a characteristic or attribute that can assume different values
Study Guide, Key
Concepts, Formulas &
Practice Questions
Updated Questions and Answers
100% Verified Exam Prep and Comprehensive
Rationales
Included
, Data Values, Measurements or observations, that the variables can assume
Data Set Collection of data values forms
descriptive statistics the collection, organization, summarization, and presentation of data
inferential statistics generalizing from samples to populations, performing estimations and hypothesis
tests, determining relationships among variables, and making predictions
population All subjects, humans or otherwise, that are being studied
sample a group of subjects selected from a population
hypothesis testing Inferences based on probability theory
Steps of descriptive statistics Variables chosen
data is organized
summary is provided
presentation of data
steps of inferential statistics hypothesis testing
relationships among variables
make predictions
frequency polygon line graph with points plotted for frequencies at the midpoints, frequencies are the
heights of the points
statistics the science of conducting studies to collect, organize, summarize, analyze, and
draw conclusions from data
variable a characteristic or attribute that can assume different values
