College Math Readiness: Unit 1 Flashcard 1

Front

What is a marginal relative frequency?

Back

A marginal relative frequency is the ratio of the total number of occurrences of a particular category to the total number of observations in a two-way frequency table.

Front

How do you calculate the number of students who like snowmobiles but do not like skateboards?

Back

To find this, look at the total number of students who like snowmobiles and subtract the number of students who like both snowmobiles and skateboards.

Front

What is the formula to find the percentage of a group?

Back

Percentage = (Part / Whole) x 100.

Front

How do you determine the total number of students who like a specific item from a two-way frequency table?

Back

Add the frequencies of all categories that include the specific item.

Front

What does it mean if a percentage is 0.69 in a survey?

Back

It means that 69% of the surveyed population falls into the specified category.

Front

How can you find the percentage of students who favor a subject in a survey?

Back

Divide the number of students who favor that subject by the total number of students surveyed, then multiply by 100.

Front

What is the significance of a two-way frequency table?

Back

A two-way frequency table displays the relationship between two categorical variables, allowing for analysis of their interactions.

Front

What is the total number of students surveyed if the survey results are based on 200 students?

Back

The total number of students surveyed is 200.

Front

How do you interpret a frequency of 25 in a two-way table?

Back

It indicates that 25 students fall into the specified category of interest.

Front

What does it mean if 37% of students said PE was their favorite subject?

Back

It means that out of the total surveyed students, 37% chose PE as their favorite subject.