Simple Statistical Instruments and Data Gathering

Every value in the set is a number

• Categorical Data Set

• Census

• Discrete

• Numerical Data Set

Non-numerical values, such as names of colors, labels, etc.

• Categorical Data Set

• Survey

• Continuous

• Numerical Data Set

A subset of population

• Population

• Data

• Sample

• Variable

A collection, or set, of individuals objects or events whose properties are to be analyzed Two kinds of populations: finite or infinite.

• Data

• Population

• Variable

• Sample

A characteristic about each individual element of a population or sample.

• Population

• Data

• Sample

• Variable

A variable that categorizes or describes an element of a population.

• Nominal

• Qualitative

• Discrete

• Quantitative

A variable that quantifies an element of a population.

• Discrete

• Quantitative

• Nominal

• Qualitative

A qualitative variable that categorizes

• Ordinal

• Nominal

• Continuous

• Discrete

A quantitative variable that can assume a countable number of values.

• Discrete

• Continuous

• Ordinal

• Nominal

A quantitative variable that can assume an uncountable number of values,

• Discrete

• Nominal

• Continuous

• Ordinal