Test 1 cheat sheet

# Test 1 cheat sheet - • Data- Consist of information...

This preview shows pages 1–2. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: • Data- Consist of information coming from observations, counts, measurements, or responses. • Statistics- The science of collecting, organizing, analyzing, and interpreting data in order to make decisions. • P opulation - The collection of all outcomes, responses, measurements, or counts that are of interest. • S ample - A subset of the population. • P arameter - A number that describes a p opulation characteristic. • S tatistic - A number that describes a s ample characteristic. • Descriptive Statistics - Involves organizing, summarizing, and displaying data. • Inferential Statistics- Involves using sample data to draw conclusions about a population. • Qualitative Data- Consists of attributes, labels, or nonnumerical entries • Quantitative data- Numerical measurements or counts. • Nominal level of measurement- (a) Qualitative data only (b) Categorized using names, labels, or qualities (c) No mathematical computations can be made. • Ordinal level of measurement - (a) Qualitative or quantitative data (b) Data can be arranged in order (c) Differences between data entries is not meaningful. • Interval level of measurement - (a) Quantitative data (b) Data can ordered (c) Differences between data entries is meaningful (d) Zero represents a position on a scale (not an inherent zero – zero does not imply “none”) • Ratio level of measurement - (a) Similar to interval level (b) Zero entry is an inherent zero (implies “none”) (c) A ratio of two data values can be formed (d) One data value can be expressed as a multiple of another....
View Full Document

## This note was uploaded on 02/07/2012 for the course MATH 1025 taught by Professor Raney during the Fall '10 term at Century College.

### Page1 / 2

Test 1 cheat sheet - • Data- Consist of information...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online