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The highest annual discharges of a river were statistically analysed for a periods of 60 years. The fifth largest flood was 2,000 m/s. Determine: a) the period in which the flood of 2,000 m/s may reoccur once; b) the percentage chance that this flood may occur in any one year; c) the percentage chance that this flood may not occur in the next 20 years;

The highest annual discharges of a river were statistically analysed for a periods of 60 years. The fifth largest flood was 2,000 m/s. Determine: a) the period in which the flood of 2,000 m/s may reoccur once; b) the percentage chance that this flood may occur in any one year; c) the percentage chance that this flood may not occur in the next 20 years;

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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7. The highest annual discharges of a river were statistically analysed for a periods of 60 years. The fifth largest flood was 2,000 m/s. Determine: a) the period in which the flood of 2,000 m/s may reoccur once; b) the percentage chance that this flood may occur in any one year; c) the percentage chance that this flood may not occur the next 20 years; d) the percentage chance that this flood may occur once or more in the next 20 years; e) the percentage chance that a 60-yr flood may occur once in 60 years, f) the percentage chance that a 60-yr flood may occur one or more times in 60 years.
Transcribed Image Text:7. The highest annual discharges of a river were statistically analysed for a periods of 60 years. The fifth largest flood was 2,000 m/s. Determine: a) the period in which the flood of 2,000 m/s may reoccur once; b) the percentage chance that this flood may occur in any one year; c) the percentage chance that this flood may not occur the next 20 years; d) the percentage chance that this flood may occur once or more in the next 20 years; e) the percentage chance that a 60-yr flood may occur once in 60 years, f) the percentage chance that a 60-yr flood may occur one or more times in 60 years.
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