DATA PRESENTATION Flashcards
Types of data presentation
textual form
tabular form
graphical form
ungrouped data
grouped data
data presentation using sentences and paragraphs in describing data
textual form
data presentation that uses tables arranged in rows and columns for various parameters
tabular form
pictorial representation of data
graphical form
data points are treated individually
ungrouped data
data points are treated and grouped according to categories.
grouped data
numerous data can be analyzed by grouping the data into different classes
frequency distribution table
the smallest and the largest values that fall within the class interval
class limits
more precise expression of the class interval
class boundaries
counting and tallying
frequency
the number of observations falling within a particular class.
frequency
numerical difference between the upper and lower class
class width
middle element of the class
class mark
it represents the entire class and it is usually symbolized by x.
class mark
can be derived from the frequency distribution
cumulative frequency distribution
