12.1 Sampling Techniques and Misuses of Statistics

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A sample that consists of a random selection of groups or units is called a​ _______ sample.

cluster

The art and science of​ gathering, analyzing, and making inferences​ (predictions) from numerical information obtained in an experiment is called​ _______.

statistics

When a population is divided into​ parts, called​ strata, for the purpose of drawing a​ sample, the procedure is known as a _____ sampling.

stratified

A subset of a population used by statisticians to make predictions about a population is called a​ _______.

sample

_____ sampling uses data that are easily or readily obtained.

convience

All items or people of interest in an experiment are collectively called a

population

f a sample is drawn in such a way that each time an item is​ selected, each item in the population has an equal chance of being​ drawn, the sample is called a​ _______ sample.

random

When a sample is obtained by drawing every nth​ item, the sample is called a _______ sample.

systematic


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