Introduction — Prelim

Question 1

It concerns the development of new methods of statistical inference and requires detailed knowledge of abstract mathematics for its implementation.

Answer 1

Mathematical Statistics

Question 2

It involves applying the methods of mathematical statistics to specific subject areas.

Answer 2

Applied Statistics

Question 3

It is a branch of applied statistics that applies statistical methods to medical and biological problems.

Answer 3

Biostatistics

Question 4

PSA stands for what?

Answer 4

Philippine Statistics Authority

Question 5

It is the central statistical authority of the Philippine government that collects, compiles, analyzes and publishes statistical information of economic, social, demographic, political affairs of the people of the Philippines and enforces the civil registration functions in the country.

Answer 5

PSA or Philippine Statistics Authority

Question 6

A division of statistics where the totality of methods and treatments employed in collecting, describing, and analyzing numerical data.

The purpose of this statistics is to tell something about a particular group of observation.

Answer 6

Descriptive Statistics

Question 7

A division of statistics where the logical process from sample analysis to a generalization or conclusion about a population.

It is also called statistical inference or inductive statistics.

Answer 7

Inferential Statistics

Question 8

It consists of all the members of the group about which one wants to draw a conclusion.

Answer 8

Population

Question 9

It is a portion, or part, of the population of interest selected for analysis.

Answer 9

Sample

Question 10

2 Sources of Data

Answer 10

Primary Data
Secondary Data`

Question 11

A sources of data that come from an original source, and are intended to answer specific research questions, can be taken by interview, man-in question questionnaire, survey, or experimentation.

Answer 11

Primary Data

Question 12

A sources of data that are taken from previously recorded data, such as information in research conducted, industry financial statements, business periodicals, and government reports. It can also be taken electronically (ex. via internet websites)

Answer 12

Secondary Data

Question 13

A type of data that is a characteristics of objects, people, or events that does not vary.

(ex. temperature at which water boils (100C) is a constant)

Answer 13

Constant

Question 14

A type of data that is a characteristics of objects, people or events that can take of different values)

It can vary quantity (weight of people) or in quality (hair color of people)

Answer 14

Variable

Question 15

2 types of Variable Data

Answer 15

1. Qualitative Variable
2. Quantitative Variable

Question 16

A type of variable data that’s conceptualized and analyzed as distinct categories, with no continuum implied.

Also termed “categorical variable”.

Answer 16

Qualitative Variable

Question 17

A type of variable data that’s conceptualized and analyzed along a continuum implied. It differs in amount of degree.

Also termed “numerical data”.

Answer 17

Quantitative Variable

Question 18

A classification of variable which can assume any of an infinite number of values and can be associated with points on a continuous line interval.

(Ex. height, weight, volume)

Answer 18

Continuous Variable

Question 19

A classification of variable that consists of either a finite number of values or a countable number of values.

(Ex. gender, courses, Olympic games)

Answer 19

Discrete Variable

Question 20

A classification of variable that is controlled by the experimenter or researcher and expected to affect the behavior of the subjects.

Also called as “Explanatory Variable”

Answer 20

Independent Variable

Question 21

A classification of variable that’s some measure of behavior of subjects and expected to be influenced by the independent variable.

Also called as “Outcome Variable)

Answer 21

Depended Variable

Question 22

4 levels of Measurement

Answer 22

Nominal
Ordinal
Interval
Ratio