Front

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.

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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?

Back

Relative frequency = (Frequency of the event) / (Total frequency) x 100%.

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CCSS.7.SP.A.2

Front

What does it mean if a relative frequency is 29% for boys who cannot bike to school?

Back

It means that 29% of the total number of students who cannot bike to school are boys.

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CCSS.8.SP.A.4

Front

What is the purpose of using two-way tables in statistics?

Back

Two-way tables help to summarize and analyze the relationship between two categorical variables, making it easier to identify patterns and trends.

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CCSS.8.SP.A.4

Front

What is the significance of the total row and column in a two-way table?

Back

The total row and column provide the overall counts for each category, which are essential for calculating relative frequencies.

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CCSS.8.SP.A.4

Front

How can you interpret the data from a two-way table?

Back

You can interpret the data by examining the frequencies and relative frequencies to understand the relationship between the two variables.

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CCSS.8.SP.A.4

Front

What is the formula to find the percentage of a subgroup in a two-way table?

Back

Percentage of subgroup = (Frequency of subgroup / Total frequency) x 100%.

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CCSS.8.SP.A.4

Front

If 30% of girls have blonde hair, what does this indicate?

Back

This indicates that out of all the girls surveyed, 30% have blonde hair, showing a specific characteristic within that subgroup.

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CCSS.7.SP.A.2

Front

What does it mean if 25% of mechanical engineers prefer math?

Back

It means that out of all the mechanical engineers surveyed, 25% indicated a preference for math over science.

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CCSS.7.SP.A.2