The first requisite for national and for individual development is the physical education. There are many- problems that confront physical education and the most important one is the lack of appreciation of the fact on the part of the public in general and the educational authorities in particular.
In case of a normal or a symmetrical distribution mean=median=mode. When the frequencies are not properly distributed it is called as an asymmetrical or skewed distribution. If it is moderately asymmetrical distribution the following empirical relationship holds good.
Notes on the Merits and Demerits of Mode. It possesses the merit of simplicity. In a discrete series it can be located even by inspection. Hence like median it has an advantage over arithmetic average.
The choice of an average is an important problem which a statistician has to face. This necessitates a relative evaluation of these three measures of central tendency.
Bacterial is very small, simple unicellular organisms with a length varying from 2 to 5. On the basis of shape bacteria are either coccus (spherical), bacillus (rod shape), spirillum (spiral) or vibro (comma) types.