The science of statistics deals with the collection, analysis, interpretation, and presentation of data . We see and use data in our everyday lives

Have class members write down the average time—in hours, to the nearest half-hour—they sleep per night.

data — a set of observations (a set of possible outcomes); most data can be put into two groups: qualitative (an attribute whose value is indicated by a label) or quantitative (an…. statistic — a numerical characteristic of the sample; a statistic estimates the corresponding population parameter. average — also called mean; a number that describes the central tendency of the data. cluster sampling — a method for selecting a random sample and dividing the population into groups (clusters); use simple random sampling to select a set of clusters; every individual in the chosen….