Interpreting Two-Way Tables Using Relative Frequency

The video tutorial covers the concept of relative frequency, explaining it as a ratio often expressed as a percentage. It explores the correlation between studying and passing using a data table and demonstrates how to convert a two-way data table into a relative frequency table. The tutorial also discusses organizing data by age groups and calculating probabilities using bivariate data tables, providing practical examples and exercises for better understanding.

What is relative frequency typically expressed as?

• A fraction

• A decimal

• A percentage

• A whole number

In a survey of 30 students, how many studied and passed?

• 30

• 25

• 21

• 15

What percentage of students who did not study passed?

• 50%

• 30%

• 25%

• 10%

How is a two-way relative frequency table used?

• To display raw data

• To show percentages

• To list names

• To calculate averages

What percentage of 12 to 13-year-olds rode the bus?

• 40%

• 50%

• 70%

• 60%

What is the probability that a randomly chosen student is in the eighth grade and walks to school?

• 6%

• 5%

• 4%

• 7%

If a student is chosen at random, what is the probability they are in the sixth grade and ride a bus?

• Calculate based on given data

• Use a different method

• Guess the answer

• Refer to another survey