Lesson 3 Presentation of data Flashcards
are data that are not organized,
or if arranged, could only be from highest to lowest or lowest o highest
Ungrouped data
are data that are organized,
and arranged into different classes or categories
Grouped data
What are the three forms of presenting data
Textual Method
Tabular Method
Graphical Method
This involves enumerating the important characteristics, giving emphasis on significant figures and identifying important features of the data.
Textual Method
It provides a more precise, systematic, and orderly presentation of data in rows and columns. This method results to easy and comprehensible comparison of figures
tabular method
is table which shows the data arranged into different classes and the number of cases which fall into each class.
frequency distribution table
is one of the most effective devices in presenting statistical results, values, and relationships in geometrical or pictorial forms.
Graphical Method
is graph represented by either vertical or horizontal rectangles whose bases represent the class intervals and whose heights represent the frequencies.
BAR CHART
is graph represented by vertical or horizontal rectangles whose bases are the class marks and whose heights are the frequencies
HISTOGRAM
is a line graph whose bases are the class marks and whose heights are the frequencies
FREQUENCY POLYGON
is a circle graph showing the proportion of each class through either the relative or percentage frequency
PIE CHART
is a line graph where the bases are the class boundaries and the heights are the <cf>cf for the greater than ogive</cf>
OGIVE