Exam 1: What Is Statistics

Which of the following is an example of attribute data?

The incomes of a group of 50 loan applicants are obtained. Which level of measurement is income?

A company was studying the demographics of their customers. As part of the study they collected the following variables: gender, marital status, credit rating (low, medium, high), annual income, and age. Which three variables are considered to be qualitative rather than quantitative?

The prime rate of interest is an example of a(n) __________________ level of measurement.

The total group being studied is called the __________________.

A marketing class of 50 students evaluated the instructor using the following scale: superior, good, average, poor, and inferior. The descriptive summary showed the following survey results: 42% superior, 28% good, 25% average, 5% poor, and 0% inferior.

The collection of all possible objects of interest is referred to as the ______________.

(i. The general process of gathering, organizing, presenting, analyzing, and interpreting data to assist in making more effective decisions is called (ii) The general process of analyzing, and interpreting data to assist in making more effective decisions is called (iii) The entire set of individuals or objects of interest or the measurements obtained from all individuals or objects of interest is called

A survey reports consumers' preferred brands of dish soap. What type of data is this called?

The Shell station on Portage Ave in Winnipeg is studying the number of litres of fuel that are sold on each day of the week. Records are available for the past year. How can the variable 'number of litres' be best described?

Your height and weight are examples of which type of random variable?

Among the many classes held at your college or university, your statistics class has been selected for a study. This one class is referred to as a ______________.

A company was studying the demographics of their customers. As part of the study they collected the following variables: gender, marital status, credit rating (low, medium, high), annual income, and age. Label the variable age as qualitative or quantitative, discrete or continuous, and nominal, ordinal, interval, or ratio.

The main purpose of descriptive statistics is to:

Which word is NOT part of the definition of descriptive statistics?

The general process of organizing, summarizing, and presenting data in an informative way is called

(i. The general process of gathering, organizing, presenting, analyzing, and interpreting data to assist in making more effective decisions is called (ii) The general process of analyzing, and interpreting data to assist in making more effective decisions is called (iii) The subset of individuals or objects of interest or the measurements obtained from all individuals or objects of interest is called

A market researcher is interested in determining the average income for families in York Region, Ontario. To accomplish this, he takes a random sample of 200 families from the region and uses the data gathered to estimate the average income for families of the entire region. This process is an example of _______.

The collecting, organizing, presenting, analyzing, and interpreting of data is called ____________________.

The branch of statistics which does not involve generalizations is called ________________.