Two-Way Tables & Relative Frequency

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What is a two-way table?

Back

A two-way table is a statistical table that displays the frequency distribution of two categorical variables, allowing for the analysis of the relationship between them.

Tags

CCSS.8.SP.A.4

Front

What is relative frequency?

Back

Relative frequency is the ratio of the number of times an event occurs to the total number of trials or observations, often expressed as a percentage.

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CCSS.7.SP.C.6

Front

How do you calculate relative frequency from a two-way table?

Back

To calculate relative frequency, divide the frequency of a specific category by the total frequency of all categories, then multiply by 100 to get a percentage.

Tags

CCSS.8.SP.A.4

Front

What does it mean if 86.5% of SUVs are driven by women?

Back

It means that out of all the SUVs surveyed, 86.5% are driven by female drivers, indicating a significant preference or trend.

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CCSS.7.SP.A.2

Front

If 16.5% of the surveyed population are electrical engineers who like math, what does this indicate?

Back

This indicates that out of the total surveyed population, 16.5% are both electrical engineers and have a preference for math.

Front

How can you find the total number of people surveyed using a two-way table?

Back

You can find the total number of people surveyed by summing all the frequencies in the two-way table.

Tags

CCSS.8.SP.A.4

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What is the significance of the percentage of males driving sports cars being 65%?

Back

This indicates that a majority of the sports car drivers in the survey are male, suggesting a gender trend in sports car ownership.

Tags

CCSS.8.SP.A.4

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What does a percentage of 15.5% for chemical engineers who prefer math represent?

Back

This represents the proportion of the surveyed population that are chemical engineers and prefer math, highlighting their interests.

Tags

CCSS.8.SP.A.4

Front

How do you interpret a two-way table?

Back

To interpret a two-way table, analyze the frequencies and percentages to understand the relationship between the two categorical variables.

Tags

CCSS.8.SP.A.4

Front

What is the formula for calculating percentage?

Back

Percentage = (Part / Whole) x 100.