What are the classifications of data in statistics?

Answer 1

Classifications of data

A. According to Nature

1. Quantitative data- information obtained from numeral variables(e.g. age, bills, etc)

2.Qualitative Data- information obtained from variables in the form of categories, characteristics names or labels or alphanumeric variables (e.g. birthdays, gender etc.)

B. According to Source

1. Primary data- first- hand information (e.g. autobiography, financial statement)

2. Secondary data- second-hand information (e.g. biography, weather forecast from news papers)

C. According to Measurement

1. Discrete data- countable numerical observation.

-Whole numbers only

- has an equal whole number interval

- obtained through counting(e.g. corporate stocks, etc.)

2. Continuous data-measurable observations.

-decimals or fractions

-obtained through measuring(e.g. bank deposits, volume of liquid etc.)

D. According to Arrangement

1. Ungrouped data- raw data

- no specific arrangement

2. Grouped Data - organized set of data

- at least 2 groups involved

-arranged