Lecture 4 Flashcards
are usually collected in a raw format
DATA
All the data is presented in the form of text,
phrases, or paragraphs.
TEXTUAL PRESENTATION
It is a systematic and logical arrangement of
data in the form of Rows and Columns with
respect to the characteristics of data.
TABULAR PRESENTATION
contains the captions or
column headings
BOXHEAD
The row captions
STUBS
iven at the foot of the
table for explanation of any fact or information
included in the table
FOOTNOTES
is used when the
individual observations involve only to a single
variable.
SIMPLE OR ONE-WAY TABLE
an extension of a simple in which there
are more than one variable distributed among its attributes
COMPOUND TABLE
a quality, property or component
of a variable according to which it can be differentiated with
respect to other variables
ATTRIBUTE
We may refer to a compound table as a
CROSS TABULATION / CONTINGENCY TABLE
simply tells
how often a variable takes on each of its
possible values
FREQUENCY DISTRIBUTION
Command for making frequency table
frequency(data_array,bins_array)
are categories into which data are grouped
CLASSES
is the
d i f f e r e n c e b e t w e e n
consecutive lower class
limits
CLASS WIDTH
a very effective visual tool as it displays data at
a glance, facilitates comparison, and can reveal trends and
relationships within the data
GRAPH
constructed by labeling each category
of data on either the horizontal or vertical
axis and the frequency or relative frequency
of the category on the other axis
BAR GRAPH
is used for the case of one
variable only (BAR GRAPH)
SIMPLE BAR GRAPH
an extension of a simple bar chart when
there are quantities of several variables to be displayed
MULTIPLE BAR GRAPH / GROUPED COLUMN CHART
In this type of bar chart, the components (quantities) of each
variable are piled on top of one another
COMPONENT BAR GRAPH / SUBDIVIDED COLUMN CHART
It is a graph used to present quantitative, continous data
HISTOGRAM
Basic Shapes of Histogram
- Bell-Shaped
- Bimodal
- Skewed Right
- Skewed Left
- Uniform
- Random
It is a circle divided into sectors
PIE GRAPH
A graph that shows information that is
connected in some way
LINE GRAPH
The simplest of line graphs
SIMPLE LINE GRAPH
graphs illustrate information on
several variables so that comparison is possible
between them (LINE GRAPH)
MULTIPLE LINE GRAPHS
are used to investigate the
relationship between two variables
SCATTER DIAGRAM / SCATTERPLOT
are specially designed to
display dispersion and skewness in a distribution
BOX AND WHISKERS DIAGRAM / BOXPLOTS
