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Sagot :
To determine the correct answer to this question, we need to understand the characteristics of different types of data scales. Let's analyze each option step by step:
A) Ratio data: This type of data has all the properties of interval data, but also has a true zero point, which means that zero represents the absence of the phenomenon being measured. Examples include height, weight, and temperature in Kelvin. Because it has a true zero, it makes mathematical operations like multiplication and division meaningful.
B) Interval data: Interval data has meaningful intervals between values, but it lacks a true zero. Examples include temperature measured in Celsius or Fahrenheit. Zero is arbitrary, and not an absence of the quantity measured. For instance, 0 degrees Celsius does not mean there is no temperature; it is just another point on the scale.
C) Nominal data: This data type represents categories or names. There is no order or hierarchy in the categories. Examples include colors, names, and labels. Nominal data is the most basic type of data used for labeling variables, without any quantitative value.
D) Ordinal data: This data type represents categories that have a meaningful order, but the intervals between the categories are not necessarily equal. Examples include ranks, such as first, second, or third place in a race. Although there is an order, the difference between ordinal positions is not consistent or meaningful.
Given that the question emphasizes the presence of a true zero and the ability to use a scale that is more powerful than ordinal data, the correct type of data is:
A) Ratio data
Ratio data meets all the criteria mentioned in the question. It has a true zero, making the data more meaningful, and it uses a scale that allows for more powerful mathematical operations, such as multiplication and division. Temperature in Kelvin is a perfect example, as 0 Kelvin represents the absence of heat.
A) Ratio data: This type of data has all the properties of interval data, but also has a true zero point, which means that zero represents the absence of the phenomenon being measured. Examples include height, weight, and temperature in Kelvin. Because it has a true zero, it makes mathematical operations like multiplication and division meaningful.
B) Interval data: Interval data has meaningful intervals between values, but it lacks a true zero. Examples include temperature measured in Celsius or Fahrenheit. Zero is arbitrary, and not an absence of the quantity measured. For instance, 0 degrees Celsius does not mean there is no temperature; it is just another point on the scale.
C) Nominal data: This data type represents categories or names. There is no order or hierarchy in the categories. Examples include colors, names, and labels. Nominal data is the most basic type of data used for labeling variables, without any quantitative value.
D) Ordinal data: This data type represents categories that have a meaningful order, but the intervals between the categories are not necessarily equal. Examples include ranks, such as first, second, or third place in a race. Although there is an order, the difference between ordinal positions is not consistent or meaningful.
Given that the question emphasizes the presence of a true zero and the ability to use a scale that is more powerful than ordinal data, the correct type of data is:
A) Ratio data
Ratio data meets all the criteria mentioned in the question. It has a true zero, making the data more meaningful, and it uses a scale that allows for more powerful mathematical operations, such as multiplication and division. Temperature in Kelvin is a perfect example, as 0 Kelvin represents the absence of heat.
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