Statistical Sciences 1024A/B Lecture Notes - Lecture 1: University Of Western Ontario, Pie Chart, Time Series
20 Apr 2016
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An individual is a person or object on which an observation is made. They are sometimes known as experimental units or sampling units. A variable is any characteristic of the individual. The variable can take on different values for different individuals. We observe or measure the value of the variable of interest for each individual. The resting heart rate of an olympic runner. If a violent crime is committed, the type of violent crime. A person"s relationship status, religion, sexual orientation, smoking status, etc. Something that can be counted or measured then added, subtracted, averaged, etc. , across individuals in the population. Ex: how tall are you, your age, your blood cholesterol level, the number of credit cards you own o. Something that falls into one of several categories. What can be counted is the count or proportion of individuals in each category.
