Frequency Tables and Relative Frequency

Front

What is a frequency table?

Back

A frequency table is a way to organize data that shows how often each value occurs in a dataset.

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What is relative frequency?

Back

Relative frequency is the ratio of the number of times a value occurs to the total number of values, often expressed as a percentage.

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How do you calculate relative frequency?

Back

Relative frequency = (Frequency of a specific value) / (Total frequency) x 100%.

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What does a frequency table help us understand?

Back

A frequency table helps us understand the distribution of data and identify patterns or trends.

Front

If 20 out of 100 students prefer chocolate ice cream, what is the relative frequency?

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Relative frequency = (20/100) x 100% = 20%.

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What is the total frequency in a frequency table?

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The total frequency is the sum of all individual frequencies in the table.

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How can you find the number of students who skipped breakfast from a frequency table?

Back

Look for the frequency corresponding to 'skipped breakfast' in the table.

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What is the importance of understanding relative frequency?

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Understanding relative frequency helps in comparing different categories within a dataset.

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If 15 students purchased no food out of 100 surveyed, what is the relative frequency of purchasing no food?

Back

Relative frequency = (15/100) x 100% = 15%.

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What does a high relative frequency indicate?

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A high relative frequency indicates that a particular value or category occurs frequently in the dataset.