Algebra and Graphs
Vectors, Matrices and Transformations
Mean, Mode, Median and Range
How to find Mean, Mode, Median and Range
Mean for Grouped data
Collecting and Displaying data
Tally Charts and Frequency Tables
Scatter Diagrams and Correlation
Introducing Cumulative Frequency
Quartiles and the Inter-Quartile Range
How to calculate Further Probability
In the previous section you have learned the basics of probability. You have studied maths questions and engaged in maths activities regarding this IGCSE and GCSE maths topic. You discovered that the probability of an event happening equals to the amount of successful outcomes divided by the amount of possible outcomes. Most of the maths questions involve dice, counters, beads and decks of plying cards. However, all of the maths questions you have done so far, always involved calculating the probability of one single event happening. What is the chance of rolling a 5 with a fair dice for instance? Or what is the chance of drawing a king of spade from a normal deck of cards? How does it work when you have to calculate the probability of combined events? For instance, when you look at the picture of the two dice - what is the probability of rolling a 2 and a 5 with two fair dice? Is that probability the same as the probability of rolling first a 2 and then a 5? Delicate but important differences in the language used in these maths questions. What about if you have a bag of counters with 6 red, 4 white and 8 green counters in it. What is the chance of first randomly drawing a red counter and then a green counter? What is the chance of drawing a red and a green counter? What is the probability of drawing a white counter which you do not replace in the bag and then draw a red counter? a lot of maths questions which will be answered in the following maths videos and activities. Do not forget that if you still don't understand, then please do not hesitate to contact me. I will be more than glad to help you with your maths questions so you are well prepared for your IGCSE and GCSE maths exam papers. Good luck and have fun!
What are Tree Diagrams and how to answer Probability Questions with Tree Diagrams
In the previous two maths activities you have seen how to calculate the probability of combined events. On IGCSE and GCSE maths exam papers you will often answer questions involving probability and combined events while analysing, constructing or completing a tree diagram. Tree diagrams help us to organise our information when solving these types of IGCSE GCSE maths questions. Tree diagrams enable us to easily calculate the probability or chance of an combined event happening. Have a look at the following maths video which will use a tree diagram to find out what the chance is of having rain on two consecutive days.
How to solve Past Paper Question involving Probability and Tree Diagrams
Check out the Maths Past Paper Exam Question during your Maths revision and know everything you need to know about Probability and Tree Diagrams to pass your next maths exam. Good luck and have fun!
Solving a Past Paper Question for your Maths Revision about Further Probability
Study the Past Paper Maths Exam Question below and learn how to solve questions on your maths exam about Probability. You will understand how to solve question about Probability needed to pass your IGCSE GCSE maths exam.