The below mentioned article provides a note on frequency distribution. For any statistical analysis, the handling with raw data requires some treatment, i.e., the classification of data to organise the available values in a more compact way. The frequency distribution presents the data very concisely indicating how frequently a variable occurs in a group of study. Construction of Frequency Distribution [...]
The below mentioned article provides a note on distribution pattern. The frequency distribution and their graphical representation like frequency polygon, histogram, bar diagram. But sometimes the knowledge of distribution pattern is required to comment on the population on the basis of observation of sample. Normal Distribution: If we observe in any population any attribute is distributed mostly near the mean [...]
The below mentioned article provides a study note on analysis of variance. The classical technique for comparing the two sample means is based on student's 't' test, but a different statistical technique, analysis of variance, is required when analysis of data of three or more experimental or field samples are involved. For example, a plant physiologist investigating the effect of [...]