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2 cards from this section. Quick, good the night before a test.
What is the formula for calculating the optimum number of gauges?
Focus on where C and E appear in the formula.
Define the coefficient of variation.
Think about how it relates to variability.
What is the formula to calculate the optimum number of rain gauges?
Focus on the structure of the formula.
True or false: A higher coefficient of variation means fewer rain gauges are needed.
Think about how variability affects accuracy.
Determine the optimum number of rain gauges for a region with a coefficient of variation of 0.35 and an allowable error of 4%.
Make sure to square both C and E, then divide.
Evaluate the relationship between gauge installation costs and precipitation variability. Provide a detailed strategy for a balanced approach.
Think about the balance between statistical data needs and practical costs.
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