BASIC STATISTIC CHAPTER 1.1

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8 Terms

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POPULATION DEFINITION

complete collection of all elements to be studied

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SAMPLE DEFINITION

a subset of the population. It is a collection of few elements selected from a population.

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Population Examples

The weight of all citizens in Malaysia.

The monthly income of all workers in IPG KTAR

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Samples Examples

The percentage of failure in SPM examination result for 22 schools

The ages of 45 students in Sarawak high school

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OBSERVATION

value of a variable or characteristic for an element

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PARAMETER

numerical measurement describing some characteristics of a population

Examples: in election for a president in a country, Adam received 49.85% of the 3,000,988 votes casted

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STATISTIC

numerical measurement describing some characteristics of a sample

Examples: based on a sample of 167 surveyed workers, it was found that 25% of the were not satisfied with the working environment

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STATISTICAL METHODS

AREMATHEMATICAL FORMULAS, MODELS, AND TECHNIQUESTHAT ARE USED IN STATISTICAL ANALYSIS OF RAW RESEARCH DATA

TO MAKE SCIENTIFIC AND INTELLIGENT DECISIONS