statistics

data
- observation
- count
- measurement
- response (survey)
statistics
- science of organizing
- analyzing
- interpreting
population

collection of all outcomes, responses, measurements, count
sample
- representative of "all"
- _{^{subset of the population}}
- belong to bigger set
parameter
- the average (population)
- _{greek letters}
statistics
- connected w/sample
- _{english letter}
2 main branches of statistics:
- descriptive
- inferential
descriptive
- describing; organizing display of data
- _{ex. graphs}
inferential

using a sample to draw a conclusion
qualitative data:
- ss#; label; attributes
- non-numeric entries
quantitative data:
- numerical measurement
- _{ex. heights, weight-any measurement}
Levels of measurement:
- nominal level
- ordinal level
- interval level
- ratio level
nominal level:
name; label; quality (fast/slow) qualitative

^{_{*no mathematical computation can be done*}}
ordinal level:
- data can be arranged in order or rank qualitative or quantitative
- _{differrences are meaningless/not much difference}
- ^{ex. PG; PG-13; R}
interval level
- can be put in order, but there is a meaningful difference quanitative
- _{"0" does not mean zero}
- ^{ex. 0 celcius 0 0farenheit}
ratio level
- calculate the ratio quanitative
- _{"0" means zero}
- ^{ex. no $ in your account in Mexico means no $ in the US account}

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statistics

Description

vocab words

Updated

2010-01-22T16:58:02Z

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