Keystone Practice (Statistics)

Front

What is a statistic?

Back

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

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What is the mean in statistics?

Back

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

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What is the median?

Back

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?

Back

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

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What is a range in statistics?

Back

The range is the difference between the highest and lowest values in a data set.

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What is a bar graph?

Back

A bar graph is a visual representation of data using bars of different heights to compare different categories.

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What is a line graph?

Back

A line graph is a visual representation of data that shows trends over time, using points connected by lines.

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What is a pie chart?

Back

A pie chart is a circular graph divided into slices to illustrate numerical proportions.

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What is a sample in statistics?

Back

A sample is a subset of a population used to represent the whole population in statistical analysis.

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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.