Construction Planning and Management
Frequency distribution curves

If symmetrical, are called normal curves
Having a single lump, are called uninodal curves
If not symmetrical, are called skew curves
All listed here

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Construction Planning and Management
During the construction period, price variation clause in contracts caters to

Variation in cost in materials element, labour element and petrol-oil-lubricant element
Increase in rates of only important materials
Rate of inflation
Variation in total cost of the project on an ad hoc basis

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