Coefficient of variation is highest in which of the following materials :
Steel
Timber (ungraded softwood)
Concrete
Masonry
Answers
Answer:
timber (ungraded soft wood)
The coefficient of variation among the four materials given is maximum for Timber.
explanation-
When relative variability is put into measurement then the measure is known as coefficient of variation. it is normally termed as the ratio between the deviation and mean given in terms of percentages.
If the deviation is given as 12% from mean then the variation from the average value is termed as the coefficient of variation. This measure is normally used on a ratio scale for comparison of positive data. The different materials provided here are masonry Steel,Timber and concrete and they all have different coefficients of variation.
Since all the four materials provided are different in nature and coefficient of variation are different but the main difference comes from the the make of material since Steel concrete and masonry are the materials that are human made and are manufactured under conditions where the variation is seen to be very less for the material to be more strong and dependable.
Timber is the only material that is found as it is in nature although it is strong enough but as compared to others the coefficient of variation is more as compared to its mean (even more than 30%) and highest among all the materials mentioned.
to know more-
What is timber? Give an example of timber plant.
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