The data presented in the table for Problem 3.30 are known as grouped data, of the type
Question:
Where and are the frequency and class mark, respectively, for k class intervals.
(a) Demonstrate that the mean of the interevent times of Problem 3.30 is as stated.
(b) How many interevent time values were used in the analysis?
In Problem 3.30
Interevent Time
(Days)Frequency
0-1 ........................... 35
1-2 ........................... 12
2-3 ............................ 6
3-4 ............................ 6
4-5 ............................ 7
5-6 ............................ 3
6-7 ............................ 1
7-8 ............................ 1
8-9 ............................ 3
9-10 ........................... 2
10-11 ......................... 1
11-12 ......................... 0
12-13 ......................... 0
13-14 ........................ 10
Step by Step Answer:
Hydrology and Floodplain Analysis
ISBN: 978-0132567961
5th edition
Authors: Philip B. Bedient, Wayne C. Huber, Baxter E. Vieux