24 Questions
Which of the following is a characteristic of ratio scale data?
It has a real zero point and consistent intervals
What type of data are counts of specific events or items according to the text?
Discontinuous data
What mathematical operations can be performed on ratio scale data due to its true zero point and consistent intervals?
Addition, subtraction, multiplication, and division
Which type of ratio scale data can take any value within a range?
Continuous data
What is an example each for continuous ratio scale data
Weight
Whats an example each for discontinuous (discrete) ratio scale data
heart rate
Why is it possible to perform all sorts of mathematical operations on ratio scale data?
because there is a true point zero and consistent intervals
What does a ‘true zero point’ mean in the context of ratio scale data?
A point in the scale that indicates the absence of what's being measured
What type of mathematical operations can be performed on interval scale data?
Addition and subtraction
Why can't we say that 40°C is 'twice as hot' as 20°C on the Celsius scale?
The Celsius scale does not have a true zero point
Which temperature scale has a true zero point and consistent intervals, allowing for multiplication and division?
Kelvin scale
What distinguishes interval scale data from ratio scale data?
Presence of a true zero point meaning you cannot perform multiplication and division
If absolute zero (the coldest possible temperature) is -273.15°C on the Celsius scale, what does it mean when we say that this type of data lacks a true zero point?
an interval scale, zero is not the absolute lowest point. It’s an arbitrary point, and values can go below zero.
Biochemist measures concentration of peptide in mol/L:
Ratio continuous
Public health official records causes of death:
Nominal
Microbiologist counts number of colonies of bacteria
Ratio discrete
A nurse notes the type of rash
Nominal
What best describes the nature of categorical - nominal data?
It involves named or labeled categories without mathematical meaning.
What is a characteristic of categorical - nominal data?
Categories can be assigned numerical values for analysis.
Why is it important to remember that categorical - nominal data lacks a true mathematical relationship?
To prevent incorrect assumptions about the relationships between categories.
What distinguishes categorical - nominal data from ratio scale data?
Categorical data allows for multiplication and division operations.
What is an example of ordinal data?
Customer satisfaction ratings
Define ordinal data
Data that is placed into categories that can be ranked
Ordinal data is not linear
True
Test your knowledge of ratio scale data, its characteristics, and examples. Learn about the types of data, mathematical operations, and scales in this quiz.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
