Mean, Median, Mode, Range & Graphs

Front

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 list of numbers sorted in ascending 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 data set. A set can have one mode, more than one mode, or no mode at all.

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What is the range?

Back

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

Front

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

Back

To find the mean, add all the numbers together and then divide by how many numbers there are.

Front

How do you find the median in a data set?

Back

To find the median, first arrange the numbers in order. If there is an odd number of values, the median is the middle one. If even, average the two middle values.

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

Back

If a data set has two modes, it is called bimodal, meaning two numbers appear with the highest frequency.

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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 show the frequency or value of different categories.

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What is a line graph?

Back

A line graph is a type of chart that displays information as a series of data points called 'markers' connected by straight line segments.

Front

What is the importance of the mode in data analysis?

Back

The mode helps identify the most common value in a data set, which can be useful for understanding trends.