Construction Planning and Management
Frequency distribution curves

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

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Construction Planning and Management
At a work site, statistical quality control of concrete means

Reduction in costs for the removal of defects
Measurement of risks to eliminate failures
Applying the theory' of probability to sample testing or inspection
Reduction in wastage of inspection costs

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