Statosphere - Let's Learn Stats!

(6 minutes read)     - By Dr. Prafulla Dikshit 2.7   Four Levels of Measurement So far, we have seen how the continuity versus disjointedness of data points, can be the greatest differentiator between different types of data. We can also look at types of data from a measurement level perspective to get a very relevant view of data types. There are broadly four levels of measurement:             2.7.1  Nominal – A nominal level of data measurement is at the most a categorization. Importantly, the categories are not ordered . For example, if 'place of birth' is a variable we are interested in, the data we collect is nominal, since we may categorize the participants by place of birth, but we can't order it to say that this one, say London, or that, like Tokyo, is the best 'place of birth' and then another one, and then another and so on. Similarly, we can categorize people by race or color of skin but c...

  -  by Dr. Prafulla Dikshit      (6-8 minutes read)                                                                                                                                                                I n the last blog post, we talked about the link...

 Let’s Learn Stats!  - by Dr. Prafulla Dikshit 6-8 minutes read 1.      Statistics Overview Before even getting to know statistics, it is critical to get a basic understanding of research. Research is a set of concepts, principles, and methods which facilitates science and scientific inquiry. The Scientific field itself may be classified into hard (e.g. Physics, Chemistry, Biology, or Mathematics) and soft (Psychology, Sociology, Anthropology, Management, or political science), science subjects. While research in itself is a big topic, it is primarily of two types – namely 1) Qualitative and 2) Quantitative. Research and its methods may also vary according to the domain or subjects. 1.1   Importance of statistics and why we even need statistics The purpose of statistics is to enable and facilitate research findings and decisions. It is interesting to note that statistics is all around us, and if we pay attention, we may often encounter statis...