Search over 10,000 free study notes

When do you use n choose k?

Say you have n objects/elements, and each one can either be selected or not selected. ‘n choose k’ gives yo...

The evolution of heat from a reaction is often classified as being exothermic or endothermic, but how do you know which one it is in order to assign the appropriate sign?

 A simple way to...

Most people are tempted to start with a quote; I would strongly advise against it. You only have a certain amount of space to spend discussing literature, so start off immediately by talking about it, str...

Remember you have only 90 minutes to get through the ELAT, and structure accordingly. Be familiar with your strengths beforehand: are you more comfortable analysing prose or poetry? Spending too long maki...

To find the mean you must add all of the numbers together (2+5+6+12+5) and divide by how many numbers you have in your data set (5). Mean = 30 : 5 = 6

To find the median you must f...