Mean Median Mode Range And Iqr

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What is the mean?

Back

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

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What is the median?

Back

The median is the middle value in a set of numbers when they are arranged in order. If there is an even number of values, the median is the average of the two middle numbers.

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What is the mode?

Back

The mode is the number that appears most frequently in a set of numbers.

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What is the range?

Back

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

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What is the interquartile range (IQR)?

Back

The IQR is the difference between the first quartile (Q1) and the third quartile (Q3) in a data set, representing the middle 50% of the data.

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How do you find the mean of a data set?

Back

To find the mean, add all the numbers in the data set and divide by the total number of values.

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How do you find the median of a data set?

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To find the median, arrange the numbers in order and identify the middle value. If there are two middle values, calculate their average.

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How do you find the mode of a data set?

Back

To find the mode, identify the number that appears most frequently in the data set.

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How do you calculate the range of a data set?

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To calculate the range, subtract the smallest number from the largest number in the data set.

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What does the IQR tell us about a data set?

Back

The IQR indicates the variability of the middle 50% of the data, helping to identify outliers.