Analysis of Trend and Periodicity in Long-Term Annual Rainfall Time Series of Nigeria - Hydrologic Time Series Analysis: Theory and Practice - page 254

Table 12.1. Summary of descriptive statistics for annual rainfall series of Guinea, Savannah, Sahel and entire Nigeria

Zone Minimum Maximum Range Mean SE SD Variance Skewness Kurtosis

mm 2 mm mm mm mm mm mm - SE - SE

Guinea 1339.0 2206.0 867.0 1828.5 158 157.9 24940.5 -0.06 0.24 0.31 0.48

Savannah 794.0 1406.0 612.0 1134.8 119 118.6 14075.7 -0.16 0.24 -0.28 0.48

Sahel 432.9 973.3 540.4 700.6 114 114.4 13096.9 -0.27 0.24 -0.17 0.48

Nigeria 868.1 1497.2 629.1 1221.3 110 110.1 12130.7 -0.23 0.24 0.59 0.48

Note: SE = Standard error; SD = Standard deviation.