UGC NET/JRF EXAM, Mass Communication & Journalism, October-2022*

Hot media are 'high definition' because they are rich in sensory data. Cool media are 'low definition' because they provide less sensory data and consequently demand more participation or 'completion'

by the audience (a useful mnemonic is to imagine that hot media are too hot to touch). Note that McLuhan was not referring to the issue of the relative cognitive effort involved in the use of different media.

Arguably, in McLuhan's terms, television has grown hotter since the 1960s as its technical picture quality has improved, so these terms are relative.

• Probability sampling involves random selection, allowing you to make strong statistical inferences about the whole group.
• Non-probability sampling involves non-random selection based on convenience or other criteria, allowing you to easily collect data.

to a particular group or nominal category on the basis of some qualitative property. In computer science and some branches of
mathematics, categorical variables are referred to as enumerations or enumerated types.

Commonly, each of the possible values of a categorical variable is referred to as a level. The probability distribution associated with a random categorical variable is called a categorical distribution. Two of the most frequent ways to look at categorical data are bar charts and pie charts.

A hypothesis can also help you to establish a clear direction and focus for your research, and to communicate your expectations and assumptions to your readers or audience.

A hypothesis can also stimulate further research by generating new questions, insights, or hypotheses based on the results of your test.

Again, a Telegram group allows members to add their contacts to the group. So, you can have new members daily, provided you don't reach the maximum membership limit of 200,000.