Mean, Median, Mode & Range

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What is the definition of mean in statistics?

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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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CCSS.6.SP.B.5C

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How do you calculate the median of a data set?

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To find the median, arrange the numbers in ascending order and identify the middle value. If there is an even number of values, the median is the average of the two middle numbers.

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CCSS.6.SP.B.5C

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What is the mode in a data set?

Back

The mode is the value that appears most frequently in a data set. A set may have one mode, more than one mode, or no mode at all.

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CCSS.6.SP.B.5C

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What is the range of a data set?

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

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How do you find the average of a set of numbers?

Back

Add all the numbers together and divide by the total count of numbers.

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CCSS.6.SP.B.5C

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What is the formula for calculating the mean?

Back

Mean = (Sum of all values) / (Number of values)

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CCSS.6.SP.B.5C

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What is the significance of the median in a data set?

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The median provides a measure of central tendency that is less affected by outliers than the mean.

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How can you determine if a data set has a mode?

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A data set has a mode if at least one value appears more frequently than others. If all values occur with the same frequency, there is no mode.

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CCSS.6.SP.B.5C

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What does it mean if a data set has multiple modes?

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If a data set has multiple modes, it is called multimodal, indicating that there are several values that occur with the highest frequency.

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CCSS.6.SP.A.3

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How do you calculate the range of a data set?

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Range = (Maximum value) - (Minimum value)

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CCSS.6.SP.B.4

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