Please enable JavaScript.
Coggle requires JavaScript to display documents.
What is statistics? - Coggle Diagram
What is statistics?
-
-
Statistics
Statistics is the science of conducting studies to collect, organize, summarize, analyze, and draw conclusions from data.
Statistics involves information, numbers, and visual graphics to summarise collected data and its interpretation.
People are making decision in the face of uncertainty. Different people are using the information in different manners.
Aims of statistics
Statistics is a TOOL to help process, summarise, analyse, display and interpret data so that we can draw conclusion and to make decisions from collected data
- To extract information from data using statistical techniques (make sense of data)
- To report findings from data – summarise and analyse the available data in a useful and informative manner
Gathering Data
-
-
Recap
Statistics is just a tool and technique to understand the world around us. Use it wisely. Use it appropriately.
-
-
-
Inferential Statistics
Inference is the process of generalising, drawing conclusions or making decisions about a population from a sample.
-
Estimation – from point estimate such as sample mean, we estimate for population mean.
For instance, only 7 out of 64 students taking SSF1093 are asked to give their GPA in 6th form.
From the mean GPA of 7 students, we can estimate the mean GPA of 64 students. The process of estimated mean value is known as inferential statistics.
-
-
-