A catchment has 6 existing rain gauges. The mean annual rainfalls recorded by these gauges in a given year are listed in the table below. What should be the optimum number of rain gauge stations in the catchment area with permissible error 10%? Rain gauge 2 3 4 5 6 Annual rainfall (cm) 82.6 102.9 180.3 110.3 98.8 136.7

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
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A catchment has 6 existing rain gauges. The mean annual rainfalls recorded by
these gauges in a given year are listed in the table below. What should be the optimum
number of rain gauge stations in the catchment area with permissible error 10%?
5 6
Rain gauge
1
2
3
4
Annual rainfall (cm) 82.6 102.9 180.3 110.3 98.8 136.7
Transcribed Image Text:A catchment has 6 existing rain gauges. The mean annual rainfalls recorded by these gauges in a given year are listed in the table below. What should be the optimum number of rain gauge stations in the catchment area with permissible error 10%? 5 6 Rain gauge 1 2 3 4 Annual rainfall (cm) 82.6 102.9 180.3 110.3 98.8 136.7
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