Statistical Questions and Data Types

This lesson introduces statistical questions, explaining their importance and how to identify them. Using examples like Jerome's baseball cards, it illustrates the criteria for statistical questions, emphasizing the need for data collection and variability. The lesson also distinguishes between numerical and categorical data, providing exercises for practice.

What is a key characteristic of a statistical question?

• It has only one possible answer.

• It requires data collection and expects variability.

• It can be answered with a single data point.

• It is always about numerical data.

Which of the following is NOT a statistical question?

• What is the average height of students in a class?

• How old is my math teacher?

• What are the favorite colors of students in a school?

• How many hours do students sleep on average?

Why is 'How old am I?' not considered a statistical question?

• It is not related to statistics.

• It involves numerical data.

• It lacks variability in the answer.

• It does not require data collection.

Which question would likely have the greatest variability in answers?

• What is the color of the school bus?

• How many pockets do students have?

• How many minutes do students spend getting ready for school?

• What is the height of the school building?

What type of data is 'favorite ice cream flavor'?

• Variable

• Numerical

• Categorical

• Statistical

Which of the following is an example of numerical data?

• Eye color

• Number of pets

• Favorite book

• Type of beverage

What is the main difference between numerical and categorical data?

• Numerical data consists of numbers, while categorical data consists of labels.

• Categorical data is always subjective.

• Numerical data is always more accurate.

• Categorical data involves numbers.

Which of the following questions would require collecting categorical data?

• How tall is the tallest student?

• What is the average age of students?

• How many students are in the class?

• What are the favorite sports of students?

What is a statistical question?

• A question that can be answered with a single data point.

• A question that requires data collection and expects variability.

• A question that is always about numerical data.

• A question that has only one possible answer.

What is the purpose of identifying statistical questions?

• To avoid using numerical data.

• To analyze data with expected variability.

• To collect data that does not vary.

• To ensure all questions have a single answer.