View
213
Download
0
Category
Tags:
Preview:
Citation preview
EXAM REVISIONSUMMARISING DATA
SUMMARISING DATACentre refers to the location of the middle of the distribution of a sample of size n.
QUESTION: What is the useful measures of where the centre of a set of numerical data is located?
Spread is about the variablility in a distribution
What are the three measures of spread?
MULTIPLE CHOICEEach employee receives a $10 000 increase in salary. What can be deduced about:
BOX PLOTS
What are the five summary statistics?
ANSWER THIS QUESTION IN YOUR BOOK (10 mins)
WHAT IS NORMAL???
Standard scores (or z-scores)
THIS SHOULD BE IN YOUR BOUND BOOK.
Recommended