Grouping Data Let’s say you collect a whole heap of scores (n________ data) It is sometimes convenient to put it into groups. Can this be done with categorical data?
What do groups look like? Groups (also known as classes) are chosen by you! It is just a range of numbers Try and form between 5 and 10 classes for your data Eg. What percentage signifies an A+ at WSC? What about a C? UG?
Spot the differences! I mean, compare and contrast…
My favourite word for today: Polygon Another awesome word: Distribution
Normal Distribution- most common score in the centre. Symmetrical. Skewed Distribution – look at where it has been dragged Bimodal distribution – Bi = two mode = score than occurs the most