Statistics

• What is statistics?

  The science of collecting, presenting, analyzing and interpreting data in order to make decisions.
• What are the elements of Statistics?

  Collection, Presentation, analysis and interpretation
• It is organizing the data obtained through tabular, graphical or textual methods

  Presentation
• It is extracting relevant information

  Analysis
• It draws conclusion

  Interpretation
• It is the gathering of quantitative & qualitative information

  Collection
• What are the basic terminologies in statistics?

  qualitative, quanititative, discrete variable, continuous variable, sample, population
• What is the data that are in characteristic in nature?

  Qualitative
• What is the data that are numeric in form?

  Quantitative
• What is the variable that is obtained through counting; limited to whole numbers?

  Discrete
• What is the variable that is obtained through measurements; can take on any value along an interval

  Continuous
• What type of data is a hair color?

  Qualitative
• What type of data is distance traveled to school?

  Quantitative
• What type of variable is weight and temperature?

  Continuous
• What type of variable is age and class size?

  Discrete
• What are the 4 scales of measurements?

  Nominal, ordinal, interval and ratio
• This measurement depicts the presence or absence of a certain attribute, usually involves the random assignment of numbers to represent the attribute?

  Nominal Measurement
• What type of measurement provides the degree of the presence of an attribute. Data is classified according to orders or ranks.

  Ordinal Measurement
• What measurement where in the data are arranged in some order and differences between data are meaningful?

  Interval Measurement
• What measurement is an interval level modifided to include the inherent zero starting point?

  Ratio Measurement
• What is the totality of items, things, or people under consideration?

  Population
• What is the subset of a population?

  Sample
• What are the Population and sample?

  The results of a series of blood tests from 1520 respondents showed that 36% of Filipinos have hypertension?

  Population: All Filipinos

  Sample : 1520 Filipino respondents
• Definition of Levels of Measurement

  • It is also called Scales of Measurement
  • tells how precisely variables are recorded