STATISTICS

Interview

This can be done personal, through phone or internet access.

Indirect Method

A technique in which questionnaire is used to elicit the information or data needed.

Direct Method

A person to person encounter between the interviewee and the interviewer.

Parameter

A numerical measurement describing some characteristics of a population.

Interviewee

This is the source of information.

Qualitative Variables

It describe a certain type of information without using numbers.

Examples: Color, Taste, Occupation, Gender and Preference to eating vegetables.

Sample

A subset of a population.

Interval scale

A(n) ________ must have a common and constant unit of measurement.

Experimental Methods

A system used to gather data from the results of performed series of experiments on same controlled and experimental variables.

Quantitative Variables

It measure or identify an information using numeric scales.

Examples: Height, number of Siblings, speed of a car, temperature, number of students in a classroom, amount of shirt in the drawer.

Interviewer

The one who gathers the information.

Descriptive Statistics

It is a method concerned with the collection, description, and analysis of a set of data without drawing conclusions of inferences about a larger set

Inferential Statistics

It is a methods concerned with making predictions or inferences about a larger set of data using only the information gather from a subset of this larger set.

Registration Method

It obtains data from the records of the government agency authorized by law to keep such data or information and made these available to the researchers

Observation Method

A technique in which data particularly those pertaining to the behaviors of individuals or group of individuals during the given situation are best describe through observation.

Experimental Methods

A system used to gather data from the results of performed series of experiments on same controlled and experimental variables.

Qualitative Variables

Color, Taste, Occupation, Gender and Preference to eating vegetables.

Quantitative Variables

Height, Number of Siblings, Speed of a car, Temperature, Number of students in a classroom, Amount of shirt in the drawer.

Continuous variable

Height, speed of a car, temperature

Population

It is the collection of all elements under consideration in a statistical study.

Census survey

It is conducted by gathering information from the entire population.

Sampling survey

It is conducted by gathering information only from part of the population