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2 cards from this section. Quick, good the night before a test.
What is a rain gauge?
Think about what instrument collects precipitation data.
Why do we need multiple rain gauges?
Consider the differences in rainfall across a wider region.
What does the coefficient of variation help determine?
Think about how variability affects measurement needs.
True or False: More rain gauges always lead to better data.
Reflect on the balance between data quality and cost.
A region has a coefficient of variation of rainfall measured at 0.2, and the allowable error is set at 10%. Using the formula presented, how many rain gauges should be deployed?
Use the equation step by step to find your answer.
Discuss how external factors like economic constraints and environmental conditions might influence the decision on the number of rain gauges.
Consider impacts on budget and data accuracy.
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