Statistics Jeopardy

Levels of Measurement

100

Individuals: eye colors, religion, hair color, etc...

Nominal

200

One category is higher or lower than other categories

Ordinal

300

Have categories, ranking, and equal intervals

Interval-Ratio

400

Education (L, M, H), Salary  (H, L), Age (Young, Old), 5 (or 7) point scale measure

Ordinal

500

Education (in years), Salary (in dollars), Age (in years), indexes and scales

Interval Ratio

Types of Distribution

100

Contains a few extremely positive (high) values

Positively Skewed Distribution

200

Contains only a few extremely low values

Negatively Skewed Distribution

300

Two peaks in the distribution

Bimodal Distribution

400

Bell Shaped, Uni-modal (one mode)

Symmetric Distribution

500

All the values of the variables are the same

SIngle Value Distribution

Central Tendency & Disp. Measures

100

Mean, Median, Mode

Central Tendency Measures

200

The value that is in the center of middle of the distribution of a variable

Median

300

The arithmetic average of all the values (scores) of a variable

Mean

400

Subtracting the lowest number from the highest number in a distribution

Range

500

The measure of a spread most commonly used in statistical practice when the mean is used to calculate the central tendency. Thus, it measures the spread around the mean.

Standard Deviation