Question 1

Which of the following best describes a variable that is measured in hours, such as the number of hours a student studies per week?

Accepted Answer

Quantitative — Continuous

Question 2

A researcher collects data on the blood types (A, B, AB, O) of patients in a hospital. How should this variable be classified?

Accepted Answer

Qualitative — Nominal

Question 3

Which of the following is an example of a discrete variable?

Accepted Answer

The number of cars in a parking lot

Question 4

A survey asks students to rate their satisfaction with campus dining as 'poor', 'fair', 'good', or 'excellent'. What type of variable is this?

Accepted Answer

Qualitative — Ordinal

Question 5

Which of the following variables is best classified as qualitative — nominal?

Accepted Answer

A student's major

Question 6

A company records the ZIP codes of its customers. How should this variable be classified?

Accepted Answer

Qualitative — Nominal

Question 7

Which of the following best describes the variable 'cost of tuition' at different colleges?

Accepted Answer

Quantitative — Continuous

Question 8

A hospital records the number of patients admitted each day. What type of variable is this?

Accepted Answer

Quantitative — Discrete

Question 9

Which of the following is an example of a variable with a natural order among its categories?

Accepted Answer

Class year (freshman, sophomore, junior, senior)

Question 10

A nutritionist records the weight (in kilograms) of each participant in a study. How should this variable be classified?

Accepted Answer

Quantitative — Continuous

Question 11

Suppose you are designing a survey to determine which city residents prefer for a new park location: North, South, East, or West. How should the variable 'preferred park location' be classified?

Accepted Answer

Qualitative — Nominal

Question 12

Which of the following variables is best classified as quantitative — discrete?

Accepted Answer

The number of books a student owns

Question 13

A study records the time (in minutes) it takes for patients to recover from anesthesia. What type of variable is this?

Accepted Answer

Quantitative — Continuous

Question 14

Which of the following is an example of a qualitative — ordinal variable?

Accepted Answer

A student's rating of a course as poor, fair, good, or excellent

Question 15

A researcher is interested in the number of pets owned by households in a city. What type of variable is this?

Accepted Answer

Quantitative — Discrete

Question 16

Which of the following best describes the variable 'region of the country' (e.g., Northeast, Midwest, South, West) in a national survey?

Accepted Answer

Qualitative — Nominal

Question 17

A variable is classified as continuous if:

Accepted Answer

Its values are measured and can take on any value within a range

Question 18

Which of the following is NOT a characteristic of a nominal variable?

Accepted Answer

Categories have a natural order

Question 19

A teacher records the final letter grades (A, B, C, D, F) for a class. How should this variable be classified?

Accepted Answer

Qualitative — Ordinal

Question 20

A city planner is interested in the average daily temperature (in degrees Celsius) for each month. What type of variable is this?

Accepted Answer

Quantitative — Continuous

Introduction to Statistics: Gathering and Classifying Data

Guida di studio - Domande di pratica

Study guide - Flashcard