What should you do if the answer options are numerically far apart?
Round your answers mid calculation to save time
How should you use the eyeballing data technique to answer these questions
Look at the headings of the data to understand what its about
Go immediately to the question to find what it wants you to work out
Complete the question
What should you do when running out of time
Guess flag and move on
Eg- tax questions are time consuming
What should you remember to manage your time well
The questions aren’t made for you to answer them all- many are time consuming on purpose so just guess flag and move on.
What does the mean mean and how do you calculate?
The mean average of a data set
Add all data points and divide by the total number of numbers
What does the median mean and how do you calculate it?
The middle value- the midpoint when the data set is arranged in order
What is the mode and how do you calculate it?
The value that appears the most often
The most common number
What is the weighted mean?
Some data points contribute to the average more than others
How to calculate weighted mean
Weighted mean= (sum of (number x weighing factor)) divided by the sum of all the weights
How do you work out compound interest?
Final amount= og amount x (1 + (interest rate in a given period/100))^number of times the rate is applied