MMW

quiz 1

Population

The set of all the individuals of interest in a particular study.

Sample

It is a set of individual selected from a

population, usually intended to represent the

population in a research study.

Parameter

It is any numerical or nominal characteristic of

the population. It is a value or measurement

obtained from the population.

Statistic

It is any value or measurement obtained from a sample.

Variables

A characteristic or condition that changes or has different values for different

individuals.

Metric Data

data obtained by measurement.

Enumeration Data

data obtained by counting.

Categorical Data

data which can be classified into groups or

categories of responses.

ungrouped data

are data that are not organized, or if arranged, could only be from highest to lowest

grouped data

are data that are arranged into different classes or categories.

Textual Method

This involves enumerating the

important characteristics, giving emphasis on significant figures and identifying important features of

the data.

Tabular Method

Sometimes, we could hardly grasp information from textual presentation of data.

frequency distribution table

is a table which shows the data arranged into different classes

and the number of cases which fall into each class.

simple frequency distribution table

consists only of class interval and frequency.