Exam 1 Definitions Part 2 Flashcards Preview

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Flashcards in Exam 1 Definitions Part 2 Deck (12):
1

Descriptive statistics

Summarize or describe the important characteristics of a known set of population data

2

Inferential statistics

Use sample data to make inferences about a population

3

Center

A representative or average value that indicates where the middle of the data set is located

4

Variation

A measure of the amount that the values vary among themselves

5

Distribution

The nature or shape of the distribution of data

6

Outliers

Sample values that lie very far away from the vast majority of other sample values

7

Time

Changing characteristics of the data over time

8

Frequency table

Lists classes of values,along with frequencies of the number of values that fall into each class

9

Lower class limits

Are the smallest numbers that can actually belong to different classes

10

Upper class limits

Are the largest numbers that can actually belong to different classes

11

Class boundaries

Are the numbers used to separate classes,but without the gaps created by class limits

12

Class width

Is the difference between two consecutive lower class limits or two consecutive class boundaries