ISDS Final:
Test 1 –
1.
 Descriptive Statistics:
Taking data and describing it; making histograms, pie charts,
and mean, median, mode.
The collection, presentation, and summarizing of data in order
to describe the various features of that data set.

Inferential statistics :
Taking data and making inferences.
The methods that make
possible the estimation of a characteristic of a population or making a decision about a
population based only upon sample results.
2.
a.
Population parameter – a summary measure that is computed to describe a
characteristic of an entire population
b.
Sample statistic a summary measure that is computed to describe a characteristic
from only a sample of the population
3.
– Qualitative:
a.
Frequency distribution:
a tabular summary of a data showing the frequency of items
in each of several distinct categories.
b.
Bar graph – graphical representation of data where each category is depicted by a bar
representing the frequency or proportion of observations falling into a category.
c.
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 Spring '08
 Nunnery
 Normal Distribution, Standard Deviation, Frequency distribution, Zscore picture thing

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