is the art and science of designing studies and analyzing the data that those studies produce. its ultimate goal is translating data into knowledge and understanding the world around us. (The art and science of learning from data)
refers to methods for summarizing the data. The summaries usually consist of graphs and numbers such as averages and percentages.
refers to methods of making decisions or predictions about a population, based on data obtained from a sample of that population.
is the total set of subjects in which we are interested.
is the subset of the population for whom we have (or plan to have) data.
Blind Study- Every object in population has an equal chance of being selected
Deliberatly choose a sample to have the same proportions of the population
is a numerical summary of the population
is a mumerical summary of a sample taken from the population
numerical information describing how much, how little, how big, how tall, how fast, etc.