PREMID Flashcards
A science that deals with collecting, organizing, summarizing, and interpreting data.
Statistics
Involves collection, organization, and analysis of data relating to some population or sample under study. Examples: Census, weather records, sports records, and health records.
Descriptive Statistics
Involves making predictions or decisions about an entire population based on results from the data in an appropriately chosen sample drawn from that population.
Inferential Statistics
Making use of parametric test (z-test, t-test, f-test or ANOVA) and non-parametric test (Chi-square test, Spearman Rho-rank Correlation Coefficient.
Inferential Statistics
is the set of all possible data values for a subject under consideration. Such as the heights of all students in a college, the result of national census, the result of national or local election.
Population
is a set of data values drawn from the much larger population.
Sample
refers to property whereby the members of a particular sample do not differ from one another.
Constant
refers to the property whereby the members of a group differ from one another.
Variable
measure a quality or characteristic on each individual or object. Cannot be expressed numerically.
Qualitative variables
measures a numerical quantity or amount of each individual or object, often represented by x.
Quantitative variables
can assume only a finite or countable number of values.
Discrete variable
can assume infinite many values corresponding to the point on a line interval.
Continuous variable
one of the simplest statistical device used in the interpretation of numerical data.
Percentage
To simplify formulas which will be applied to a large set of data, the symbol (capital Greek sigma, standing for letter S) which is mathematical short hand.
Summation
Have been artificially created but non of the numbers have any numerical meaning
Nominal
