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13 Cards in this Set
- Front
- Back
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What is Statistics? |
Statistics is the science of collecting describing and analyzing/generalizing information |
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What is population? |
Population is the group of everything to be studied EXAMPLE: all smc students all registered voters |
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What is a Sample? |
A sample is any subset of a population |
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What are the two main types of data? |
Numeric (Quantitative) and Categorical (Qualitative) |
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What is Numeric Data? (Quantitative) |
Example:Age, salary, height, weight # of people in room |
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What is Categorical Data? (Quantitative) |
Example: Age group, eye color ethnic groups,gender, sexual orientation etc. |
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What are the two main branches of Numeric Data? |
Discrete and Continuos |
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What is Discrete Data? |
Discrete, things we can count
EXAMPLE: number of people, generally no decimals and finite |
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What is Continuous Data? |
Things we can measure EXAMPLE: Height, generally decimals are possible infinite |
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What is Nominal? |
No inherent order EXAMPLE: eye color, gender, ethnicity |
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What is Ordinal? |
An inherent order EXAMPLE: compact and full poor, good, great |
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What is Interval? |
Non inherent starting with 0 doesn't mean nothing EXAMPLE: 0ºc doesn't mean no temp years we elected presidents |
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What is Ratio? |
Zero means nothing Example : Salary = $0 |
