Statistical Questions and Data Types

The video tutorial covers the concept of statistical questions, explaining that they require data collection and exhibit variability in responses. It distinguishes between statistical and non-statistical questions, provides examples, and discusses how to identify categorical and numerical data. The tutorial also guides on rewriting non-statistical questions into statistical ones and creating new statistical questions, emphasizing the importance of understanding data types.

What is a key characteristic of a statistical question?

• It is always about numbers.

• It can be answered without collecting data.

• It has only one possible answer.

• It involves variability in responses.

Which of the following is a non-statistical question?

• How many letters are in my last name?

• How many hours of sleep do sixth-graders usually get?

• How many letters are in the last names of students in my class?

• What is the maximum number of feet rollercoasters drop?

Which dataset is considered numerical?

• Types of cars owned by a group of people

• Languages spoken by each of 20 adults

• Number of pets for each of forty third graders

• Favorite sport of each person in a group

What makes a dataset categorical?

• It consists of numbers.

• It consists of words or categories.

• It is always about measurements.

• It involves calculations.

Which of the following is an example of numerical data?

• Types of fruits in a basket

• Names of students in a class

• Number of hours spent reading

• Colors of cars in a parking lot

How can you make the question 'How many pets does your teacher have?' statistical?

• Ask how many pets each teacher in your school has.

• Ask how many pets your teacher's neighbor has.

• Ask how many pets your teacher had last year.

• Ask how many pets your teacher wants.

Which of the following is a statistical question?

• What is the name of my pet?

• How many points did the soccer team score in each game this season?

• How many pages are in our math book?

• What is the color of my car?

How can you change 'How many pages are in our math book?' to be statistical?

• Ask how many pages are in the science book.

• Ask how many pages are in the oldest book.

• Ask how many pages are in the books in the library.

• Ask how many pages are in the teacher's book.

What is the purpose of rewriting a question to be statistical?

• To make it easier to answer

• To allow for data collection and variability

• To ensure it has only one answer

• To make it more interesting

What type of data is collected when asking about the height of each sixth grader?

• Numerical

• Qualitative

• Categorical

• Descriptive