Data Types The assignment was to identify the kind of data for some variables in
ID: 3354510 • Letter: D
Question
Data Types The assignment was to identify the kind of data for some variables in the data sets that were distributed in class. Fill in the tables below to classify each variable as: Quantitative or Qualitative Discrete or Continuous and Give the Measurement Scale (Nominal, Ordinal, Interval, Ratio) * Corrosion Data Quantitative/ ualitative Discrete/ Continuous Measurenent Variable Weight of corrosion (g) Type of climate Scale Blood Pressure Study Data Quantitative/ ualitative Discrete/ Continuous Measurement Scale Variable SUBJECT GROUP SBPB Svstolic Blood Pressure DBPB Diastolic Blood Pressure RELWT Relative Weight AGE MILE me min.l for mile runExplanation / Answer
Nominal scales are used for labeling variables, without any quantitative value. “Nominal” scales could simply be called “labels.”
With ordinal scales, it is the order of the values is what’s important and significant, but the differences between each one is not really known.
Interval scales are numeric scales in which we know not only the order, but also the exact differences between the values. This scale has the properties of the nominal and ordinal scales, but here the magnitude between the consecutive intervals are equal. Temperature is the example that is usually given to illustrate an interval scale.
Ratio scales have all of the characteristics of the nominal, ordinal and interval scales. In addition, however, ratio scales have a true zero. This is the kind of scale that you used when you learned arithmetic in grade school. You assumed that the numbers had meaning, that they had rank order (3 is larger than 2), that the intervals between the consecutive numbers were equal and that there was a zero. Four was twice two; eight was half of sixteen etc. There are true ratios. One can use all mathematical operations on this scale.
variable quatitative/qaulitative Discrete/continutous Measurement scale weight of corrosion(g) quantitative continuous ratio Type of climate qualitative discrete nominalRelated Questions
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