Mean. The mean of an observation variable is a numerical measure of the central location of the data values. It is the sum of its data values divided by data count. Hence, for a data sample of size n, its sample mean is defined as follows:Similarly, for a data population of size N, the population mean is:ean. The mean of an observation variable is a numerical measure of the central location of the data values. It is the sum of its data values divided by data count. Hence, for a data sample of size n, its sample mean is defined as follows:
Names of territorial origin were common, a man would have had the surname Langford if he was from the village of Langford. An example of this is Osm' de Langeford who was recorded in the Pipe Rolls for Wiltshire in 1130. The name Osm' de Langeford means Osm' from the village of Langford.
ISBN 0-19-211592-8: Holt English: a topographic name for someone who lived in or by a wood or copse, ME, OE holt, or habitation name from one of the very many places named with this word. The surname is widely distributed, but rather more common in Lancs. than elsewhere. Vars.: Hoult; Holter.nother Description of the Origin of the Surname Holt The surname Holt has two possible origins, one from a place so named of which there are several examples in England, and the second, toponymical from the Old English word holt, - 'wood'.