Measures of Central Tendency

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What is the definition of 'Measures of Central Tendency'?

Back

Measures of Central Tendency are statistical measures that describe the center or typical value of a dataset. The most common measures are mean, median, and mode.

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What is the mean?

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

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How do you calculate the median?

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To find the median, arrange the numbers in ascending order and identify the middle number. 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?

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

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What is the range of a dataset?

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

Front

Calculate the mean of the following numbers: 2, 4, 6, 8, 10.

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The mean is 6. (2+4+6+8+10)/5 = 6.

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Find the median of the following numbers: 3, 1, 4, 2, 5.

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The median is 3. (Arranged: 1, 2, 3, 4, 5; middle number is 3.)

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Identify the mode of the following dataset: 1, 2, 2, 3, 4.

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The mode is 2, as it appears most frequently.

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What happens to the mode if the most frequent number is removed from the dataset?

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If the most frequent number is removed, the mode may change or become undefined if no number appears more than once.

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Calculate the range of the following numbers: 5, 10, 15, 20.

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The range is 15. (20 - 5 = 15)