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statistics
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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
Author
Anonymous
ID
4724
Card Set
statistics
Description
vocab words
Updated
2010-01-22T16:58:02Z
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