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A catchment area has seven rain gauge stations. In a year, the annual rainfall recorded by the gauges are as follows: Station Q R T V Rainfall 120 140 118 109 160 100 145 (cm) For a 5% error in the estimation of the mean rainfall, calculate the minimum number of additional stations required to be established in the catchment.

A catchment area has seven rain gauge stations. In a year, the annual rainfall recorded by the gauges are as follows: Station Q R T V Rainfall 120 140 118 109 160 100 145 (cm) For a 5% error in the estimation of the mean rainfall, calculate the minimum number of additional stations required to be established in the catchment.

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A catchment area has seven rain gauge stations. In a year, the annual rainfall recorded by the gauges are as follows: Station P Q R. S V Rainfall 120 140 118 109 160 100 145 (cm) For a 5% error in the estimation of the mean rainfall, calculate the minimum number of additional stations required to be established in the catchment.
Transcribed Image Text:A catchment area has seven rain gauge stations. In a year, the annual rainfall recorded by the gauges are as follows: Station P Q R. S V Rainfall 120 140 118 109 160 100 145 (cm) For a 5% error in the estimation of the mean rainfall, calculate the minimum number of additional stations required to be established in the catchment.
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