What Is Statistic?

Question 1

Define statistics

Answer 1

Statistics is the science of collecting, presenting, analyzing and interpreting of data

Question 2

Kind of statistics

Answer 2

Descriptive statistics

Inferential statistics

Question 3

Descriptive statistics

Answer 3

This kind of statistics include the methods and techniques used to describe the current situation with the collected data

Question 4

Inferential statistics

Answer 4

This kind of statistics include the methods and techniques used to drive conclusions regarding population (whole) considering only sample (representative part of whole)

Question 5

Population

Answer 5

The whole or aggregate of subjects of study about whom decision is needed

Question 6

Sample

Answer 6

The selected representative part of the population used to reach the decision about population

Question 7

Parameter

Answer 7

Any statistical measure computed from population data is parameter

Question 8

Statistic

Answer 8

Any statistical measure computed from sample data is statistic

Question 9

Variable

Answer 9

Any observed characteristic is called variable if it attains different values from person to person, place to place, time to time.

Question 10

Constant

Answer 10

Any observed characteristic is called constant if it attains the same value from person to person, place to place or time to time

Question 11

Qualitative variable

Answer 11

Also called an attribute

Any observed characteristic which is not numeral but one can feel the presence or absence of particular characteristic

Question 12

Quantitative variable

Answer 12

Any observed characteristic which is numeral is called quantitative variable

Question 13

Discrete variable

Answer 13

Any quantitative variable is regarded as discrete if it attains only finite number of values

Question 14

Continuous variable

Answer 14

Any quantitative variable is regarded as continuous if it attains or can attain all possible values between the two known values

Question 15

Complete enumeration

Answer 15

The researcher covers each and every element concerning the understudy population

Question 16

Part enumeration

Answer 16

The researcher selects a sample in a logical way and then covers only this sample

Question 17

Methods of collecting primary data

Answer 17

Direct personal observation
Indirect oral investigation
Estimates through correspondence
Investigation through scheduled questionnaires