Intro to statistics slides.

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INTRODUCTION TO
STATISTICS

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GUESS WHAT WORD IT COULD BE

3. z
Answer :
DATA
ATDA

4. z
Answer :
VARIABLE
LARVBIAE

5. z
Answer :
STATISTICS
ISTSCITATS

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ACTIVITY!

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Statistics - is a scientific body of
knowledge which deals with the
collection, organization,
presentation, interpretation, and
analysis of data.
Introduction to Statistics.

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Data
- a set of information or
observations under study. Data
gathered from a population or a
sample. Data may be classified as
quantitative or qualitative

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Qualitative - are data which can
assume values that manifest the
concept of attributes.
- can be taken on non-numerical
values such as name of colors,
labels and others. ( Categorical )
Example
Flavor of ice cream
Sizes of t-shirt ( large, medium, small )

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Quantitative - are data which
are numerical in nature. (
Numerical )
Example
1. Hours of sleep
2. Number of students in Don Carlos
Ledesma National High School.

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Variable
- it is a characteristics of a population or a
sample which makes the members
different from each other.
- variables can be discrete or continuous..

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Discrete variable
- is a variable whose values are
obtained through the process of
counting. ( Counted )
Example
Number of chairs in the classroom
The number of teachers in the school
The number of pots in the hallway.

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Continuous variable –
is a variable that can be obtained
through the process of measuring.
( Measured )
Example
Weight
Height
The distance between your house and
school.

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1. What is statistics?
2. What is the difference between
qualitative and quantitative data?
3. How do you differentiate discrete and
continuous variable?
ANALYSIS

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Abstraction
Statistics - is a scientific body of knowledge which
deals with the collection, organization, presentation,
interpretation, and analysis of data.
Qualitative - are data which can assume values
that manifest the concept of attributes.
- can be taken on non-numerical values such as
name of colors, labels and others.
Quantitative - are data which are numerical in
nature.
Qualitative is categorical while Quantitative is
numerical.

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Discrete variable - is a variable whose values
are obtained through the process of counting.
Continuous variable - is a variable that can
be obtained through the process of measuring.
Discrete variable is counted while Continuous
variable is measured.

20. z Application
Classify each of the following data as quantitative or
qualitative kind of data.
 Age of students
 Color of the eye
 Number of computers in the school
 School logo
 Score in the entrance examination

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Identify each of the following as discrete or continuous
variable.
 Number of mangoes harvested
 Height of a building
 Area of a circle
 Number of guests in a wedding
 Dimension of a white board

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EVALUATION
I. Direction: Determine whether the given data is a
QUALITATIVE or QUANTITATIVE.
1.Color of a car
2.The time it takes to cut a lawn
3.Marital status of faculty members in a university
II. Classify the following data as continuous or discrete.
4.The mean weight of pennies currently being minted is 2.5
grams.
5.The number of costumers at a drive thru each hour.

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ASSIGNMENT
Have an advance study/ research
about gathering statistical data.