Quantitative vs. Categorical Data

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What is Quantitative Data?

Back

Quantitative data refers to numerical information that can be measured and expressed mathematically. Examples include height, weight, and test scores.

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What is Categorical Data?

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Categorical data refers to non-numerical information that can be divided into categories or groups. Examples include gender, colors, and types of cuisine.

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What is a Histogram?

Back

A histogram is a graphical representation of the distribution of numerical data, showing the frequency of data points within specified ranges (bins).

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What does it mean if a histogram is Right Skewed?

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A right-skewed histogram has a longer tail on the right side, indicating that most data points are concentrated on the left with fewer high values.

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What does it mean if a histogram is Left Skewed?

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A left-skewed histogram has a longer tail on the left side, indicating that most data points are concentrated on the right with fewer low values.

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What is the Minimum Data Item in a Data Set?

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The minimum data item is the smallest value in a data set.

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How do you determine the mode of a data set?

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

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What is the Median of a Data Set?

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The median is the middle value when a data set is ordered from least to greatest. If there is an even number of observations, it is the average of the two middle values.

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What is the Range of a Data Set?

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The range is the difference between the maximum and minimum values in a data set.

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What is a Frequency Distribution?

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A frequency distribution is a summary of how often each value occurs in a data set.