8.5.1 - Formula for Optimum Number of Gauges
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Practice Questions
Test your understanding with targeted questions
What is the formula for calculating the optimum number of gauges?
💡 Hint: Focus on where C and E appear in the formula.
Define the coefficient of variation.
💡 Hint: Think about how it relates to variability.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula to calculate the optimum number of rain gauges?
💡 Hint: Focus on the structure of the formula.
True or false: A higher coefficient of variation means fewer rain gauges are needed.
💡 Hint: Think about how variability affects accuracy.
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Challenge Problems
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Determine the optimum number of rain gauges for a region with a coefficient of variation of 0.35 and an allowable error of 4%.
💡 Hint: 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.
💡 Hint: Think about the balance between statistical data needs and practical costs.
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