Average Temperatures for Virginia in October. Average temperatures for October at cities, towns, parks and lakes throughout Virginia are listed below in degrees Fahrenheit and Celsius. The tables give the normals for maximum and minimum temperatures based on weather data collected from 1981 to 2010 by the US National Climatic Data Center.
In statistics, interval estimation is the use of sample data to calculate an interval of possible (or probable) values of an unknown population parameter, in contrast to point estimation, which is a single number.n statistics, interval estimation is the use of sample data to calculate an interval of possible (or probable) values of an unknown population parameter, in contrast to point estimation, which is a single number.
The Mean. The mean of a data set is what is most often meant by the common use of the word average. It is found by first adding all the data values, then dividing by the number of values. The sum of the test scores above is 869, and there are eleven scores. Thus the mean is 869/11 = 79.