AP Stats - Chapter 4 Review

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What is a population in statistics?

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A population is the entire group of individuals or items that we want to study or draw conclusions about.

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What is a sample in statistics?

Back

A sample is a subset of the population that is used to represent the population in a study.

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What is the difference between qualitative and quantitative data?

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Qualitative data describes characteristics or qualities (e.g., colors, names), while quantitative data consists of numerical values (e.g., height, weight).

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What is a variable in statistics?

Back

A variable is any characteristic, number, or quantity that can be measured or counted.

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What is a statistic?

Back

A statistic is a numerical value that summarizes or describes a characteristic of a sample.

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What is a parameter?

Back

A parameter is a numerical value that summarizes or describes a characteristic of a population.

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What is the mean?

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The mean is the average of a set of numbers, calculated by adding all the values and dividing by the number of values.

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What is the median?

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The median is the middle value in a data set when the numbers are arranged in order.

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What is the mode?

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The mode is the value that appears most frequently in a data set.

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What is a histogram?

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A histogram is a graphical representation of the distribution of numerical data, showing the frequency of data points in specified ranges.