CHAPTER 1- INTRODUCTION TO STATISTICS. Quality content you can rely on!

CHAPTER 1- INTRODUCTION TO STATISTICS.
Quality content you can rely on!
Data - Answer: consist from information coming from observations, counts,
measurements, or responses


Statistics - Answer: the science of collecting, organizing, analyzing, and interpreting
data in order to make decisions


Population - Answer: the collection of all outcomes, responses, measurements, or
counts that are of interest


Sample - Answer: a subset, or part, of a population


Parameter - Answer: a numerical description of a population characteristic


Statistic - Answer: a numerical description of a sample characteristic


Descriptive statistics - Answer: the branch of statistics that involves the organization,
summarization, and display of data


Inferential statistics - Answer: the branch of statistics that involves using a sample to
draw conclusions about a population; a basic tool used is probability


Qualitative data - Answer: consist of attributes, labels, and nonnumerical entries


Quantitative data - Answer: consist of numerical measurements or counts


Nominal level of measurement - Answer: are qualitative only and are categorized using
names, labels, or qualities; no mathematical computations can be made




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