STATISTICAL TECHNIQUES AND TOOLS
INTRODUCTION OF STATISTICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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time
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gender
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grades
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all of these
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Detailed explanation-1: -One of the most common examples of a ratio scale is the Kelvin scale. A Kelvin scale possesses the true zero point. This means that, while 40 degrees is not twice hot as 20 degrees on a Celsius or Fahrenheit scale.
Detailed explanation-2: -Your example of interval (percent grades) is ordinal as well, as the difference in ability between a 90-80 range is probably not the same difference in ability between 40-30. It also has no meaningful zero point so it is not ratio. Percent grades or scores are really not ratio or interval, but ordinal.
Detailed explanation-3: -Income, height, weight, annual sales, market share, product defect rates, time to repurchase, unemployment rate, and crime rate are examples of ratio data.