Most Popular Music Genre Animal Attack Rates Time Spent Studying Examples Athletics Teen Pregnancy Most Popular Music Genre Animal Attack Rates Time Spent Studying Stress Levels Sports Injuries

Definitions

Definitions Statistics - the study of how to collect, organize, analyze, and interpret numerical information from data

Definitions Individuals - the people or objects included in the study People getting attacked by sharks Pro soccer players High school football players

Definitions Variable - Characteristic of the individual to be measured or observed If attacked by shark Distance ran in a game Concussion Y/N?

Definitions Quantitative Variable - has a value or numerical measurement for which operations such as addition or averaging make sense. Distance ran Running plays

Definitions Qualitative Variable - describes an individual by placing the individual into a category or group, such as male or female

Definitions Population data - the data is comprised from every individual of interest

Definitions Sample data - the data is comprised from only some of the individuals of interest

Definitions Parameter - a numerical measure that describes an aspect of a population

Definitions Statistic - a numerical measure that describes an aspect of a sample

Definitions Nominal level of measurement - applies to data that consist of names, labels, or categories. There are no implied criteria by which the data can be ordered from smallest to largest

Definitions Ordinal level of measurement - applies to data that can be arranged in order. However, differences between data values either cannot be determined or are meaningless

Definitions Interval level of measurement - applies to data that can be arranged in order. In addition, differences between data values are meaningful

Definitions Ratio level of measurement - Applies to data that can be arranged in order. In addition, both differences between data values and ratios of data values are meaningful. Data at the ratio level have a true zero