Module 3.1 and 3.2 Flashcards
is the process of gathering and measuring information about variables on study established systematic procedure, which then enable to answer relevant questions at hand and evaluate outcomes.
data collection
refers to a set of people, objects, measurements, or events that belong to a defined group.
population
is defined as a subset of a population. A sample is any subset of elements drawn by some appropriate method from a defined population. The sample is a small but representative cross-section of the population.
sample
is descriptive and conceptual. It can be categorized based on traits and characteristics.
qualitative data
are those obtained through counting. It can only assume a countable or finite number of values. It cannot take the form of decimals.
discrete
are the result of a measurement.
It can assume infinitely many and continuous values.
continuous variable
It is sometimes referred to as classificatory scale. This scale is used for classifying and labeling variables without quantitative value.
nominal
It possesses the characteristics of the nominal scale, where it classifies data, however, the classification has ranks. Data is shown in order of magnitude.
ordinal
lists categories of scores
along with their corresponding frequencies. The frequency for a category or class is the number of original scores that fall into that class.
frequency table
consists of columns that can generate various graphs or charts. It is a prerequisite for
creating graphs and charts used in statistics.
extended frequency table
It is a graph in which the classes are marked on the horizontal axis (x-axis) and the class frequencies on the vertical axis (y-axis).
histogram
It is a graph that displays the data using points that are connected by lines.
frequency polygon
is a graph that displays the cumulative frequencies for the classes in a frequency distribution. The graph is typical “upward” in trend. It also shows values below a certain boundary.
cumulative frequency polygon