collection - refers to the gathering of info or data.

• collection is the process of gathering information from various sources.
• organization - involves summarizing data in textual forms
• analysis - involves describing the data using statistical methods and procedures
• population - is a complete collection of all elements to be studied
• Census - collection of data from every element in a population
• Sample - a sub-collection of elements drawn from a population
• numerical data - those in numerical form which are either continuous or discrete
• continuous data - measurement that can take any value from an infinite range
• categorical data - take non-numerical values, such as colors, information of question that are ans by yes or no
• closed questions - can be answered by yes or no
• open-ended questions - allow someone to give a free form answer
• survey - surveys are usually covered by the government and other form of surveying organization
• data gathering - defined as the procedure of collecting, measuring and analyzing accurate facts or info using standard validated techniques
• data - a collection of facts or information
• conducting surveys - may use interview method and the questionnaire method
• interview method - a person collecting the data is called the interviewer while the other individual furnishing the data is the interviewee
• questionnaire method - advisable if the survey requires a series of questions, which the interview method will be slow to use
• observing the outcomes of events - usually used by behavioral scientist who are primarily concerned with the behavior of either an individual
• taking measurements in experiment - physicist and chemist make us of the experimentation in gathering info
• reading statistical publication - advised if you need to consult records or history in order to gather data
• frequency - the number of accurences of a data
• frequency table - a table that lists items and shows the number or times the items occur
• determine the range - a difference between the highest value H and the lowest value L in the set of data