Discrete Vs. Volume
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 This topic has 6 replies, 5 voices, and was last updated 14 years, 10 months ago by Sayyed.

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January 30, 2008 at 9:55 pm #49233
SwaggertyParticipant@George Include @George in your post and this person will
be notified via email.If I have a large volume of count data, do I consider that to be continous. e.g. No. of defective parts / Total parts manufactured. In both the cases (numerator & denominator) my data is discrete. If I were to look at the % defective parts, will be data be considered continuous?
Will the volume of the underlying data determine my data type? If volume is > 1000 then % measure is continuous and if < 1000 then % measure is discrete?0January 30, 2008 at 10:09 pm #167992
TaylorParticipant@ChadVader Include @ChadVader in your post and this person will
be notified via email.George,
Your Data is Descrete, this you know. Once you convert the data to a percentage such as good/bad then you are talking about variable Binary Descrete data, other wise having a value rank or order. If no value rank or order can be assigned, then the data is considered Attribute Binary Descrete.(Example Male/Female) Continuous data cannot exist in this form It is only continuous when reference to a scale, length, or time etc. (Ratios and Intervals)
There is no underlying volume that determines Descrete/Continuous data.
Hope this helps0January 30, 2008 at 10:46 pm #167993
SwaggertyParticipant@George Include @George in your post and this person will
be notified via email.Thanks a lot Chad!
What if I measure total number of defective parts every day as a % measure. E.g. % defective parts manufactured everyday for 3 months. I will be measuring % over a large variable volume on a continual basis. In this case will it be considered continuous / discrete?0January 30, 2008 at 11:04 pm #167994
TaylorParticipant@ChadVader Include @ChadVader in your post and this person will
be notified via email.George
Your data is still discrete, However if you report your data as a function of time lets say %defects per month then one might consider it to be Continuous, but its still Discrete Variable Binary Data.
Continuous Data Examples are something like thisHow long it takes to take a test
Temperature of the sun
Weight of a Child when born
Wavelength of a radio frequency
Voltage output of a car battery
0January 31, 2008 at 1:30 pm #168022
6Sigma Below The BeltParticipant@6SigmaBelowTheBelt Include @6SigmaBelowTheBelt in your post and this person will
be notified via email.Your data is a rate and can be considered pseudocontinuous provided you have the following:
1. the denominator is >100 or better if >1000
2. Only 20% of the total data gathered should have the same value
3. p or np >5 or 950February 4, 2008 at 8:28 am #168125If 1000 pepole lie instead of 100 that does not make it the truth.
0February 4, 2008 at 11:31 am #168134Thanks 6Sigma Below the Belt:
I now recall, these guidelines are similar to what my mentors had instructed during one of my GB projects. So, just to confirm – when my data is pseudocontinuos I will be able to use all the tests/tools that assume Y data to be continuous, right?
Thanks again, – Neal
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