Statistics: Basic
Definitions, Types,
Variables & Sampling
Methods – Study Guide
Updated Questions and Answers
100% Verified Exam Prep and Comprehensive
Rationales
Included
, What is Statistics? The art and science of collecting, analyzing, presenting,
and interpreting data.
What are some applications of Economics (forecasts), Finance (investment decisions),
Statistics? Production (quality control), Daily life (income and
savings).
What are Descriptive Statistics? Methods used to meaningfully describe data by
organizing and summarizing it in tabular, graphical, or
numerical forms.
What are the types of Descriptive Tabular (Frequency Tables), Numerical (Measures of
Statistics? Location, Central Tendency, Variation), Graphical (Pie
charts, Histograms, Bar graphs).
What is Inferential Statistics? Using a sample to make claims about a population,
involving uncertainty.
What is the role of Probability in It helps determine how confident we can be that our
Inferential Statistics? conclusions about a population are correct.
Define Population in statistics. A collection/universe of persons, things, or objects
under study.
What is a Parameter? A feature of a population that we are interested in
studying.
What is a Sample? A portion or subset of a larger population drawn to
obtain information about the population.
What is a Statistic? A number that represents a property of the sample and
is an estimate of the population parameter.
Definitions, Types,
Variables & Sampling
Methods – Study Guide
Updated Questions and Answers
100% Verified Exam Prep and Comprehensive
Rationales
Included
, What is Statistics? The art and science of collecting, analyzing, presenting,
and interpreting data.
What are some applications of Economics (forecasts), Finance (investment decisions),
Statistics? Production (quality control), Daily life (income and
savings).
What are Descriptive Statistics? Methods used to meaningfully describe data by
organizing and summarizing it in tabular, graphical, or
numerical forms.
What are the types of Descriptive Tabular (Frequency Tables), Numerical (Measures of
Statistics? Location, Central Tendency, Variation), Graphical (Pie
charts, Histograms, Bar graphs).
What is Inferential Statistics? Using a sample to make claims about a population,
involving uncertainty.
What is the role of Probability in It helps determine how confident we can be that our
Inferential Statistics? conclusions about a population are correct.
Define Population in statistics. A collection/universe of persons, things, or objects
under study.
What is a Parameter? A feature of a population that we are interested in
studying.
What is a Sample? A portion or subset of a larger population drawn to
obtain information about the population.
What is a Statistic? A number that represents a property of the sample and
is an estimate of the population parameter.
