# Values eg no of people on a bus possible values 0 1

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values e.g. No. of People on a bus (possible values: 0, 1, ...70) You can count the no. of possible values Usually in Whole Numbers Continuous (Measurable) Has many possible values e.g. height of a person (between 1m to 1.5 m, there is 1.01m, 1.02m 1.03m .... ) there are too many possible values to count Usually in Fractions Measurable Items: weight, height, length, time, money volume, speed

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Slide number 24 Levels of Measurement There are four levels of data. Nominal level: Data that is classified into categories and cannot be arranged in any particular order. EXAMPLES: eye color, gender, religious affiliation.
Slide number 25 Levels of Measurement Ordinal level: involves data arranged in some order, but the differences between data values cannot be determined or are meaningless. EXAMPLE: Satisfaction level

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Slide number 26 Levels of Measurement Interval level: similar to the ordinal level, with the additional property that meaningful amounts of differences between data values can be determined. There is no natural zero point. EXAMPLE: Temperature on the Fahrenheit scale.
Slide number 27 Levels of Measurement Ratio level: the interval level with an inherent zero starting point. Differences and ratios are meaningful for this level of measurement. EXAMPLES: Monthly income of surgeons, or distance traveled by manufacturer’s representatives per month.

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