Mathematical modelling and making real life connections is the focus of this guide. The use of tree diagrams in probability is developed starting with collecting data to model the numbers of boys and girls in families and the orders in which they occur. The connections between the underlying mathematics in these situatons, […]
You will need a 0-9 spinner like the one in the picture or […]
For scissors hold out 2 fingers like a pair of scissors.
For paper hold your hand out flat.
For rock clench your hand into a fist.
Count 1 , 2, 3 and then both players make one of the signs scissors, or paper or rock at the same […]
Suppose you throw a double one. On the next throw, is your chance of throwing a double one the same, more likely or less […]
Next suppose I pick 2 of the 6 cards at […]
Twenty per cent of the inhabitants of a city have been inoculated against a certain disease. An epidemic hits the city and the chance of infection amongst those inoculated is 10% but amongst the rest it is 75%.
Copy and fill in the contingency table and the Venn diagram below and use them to answer […]
Mzo picks one marble from each bag at random.
What is the probability he picks one of each colour? What is the probability he does NOT pick a […]
Eight of the envelopes each contain 5 blue and 3 red sheets of paper.
The other 12 envelopes each contain 6 blue and 2 red sheets of paper.
You choose one envelope at random. Then you choose a sheet of paper from it at […]
If Busi has 3 children what is the probability that at least one will be a girl?
Imagine tossing a coin three times.
What’s the probability you will get a head on at least one of the tosses?
Suppose you drew this tree diagram. How would it help you to find the answers to […]
Each lottery ticket has 6 numbers and you win a top prize if your 6 numbers match the 6 numbers chosen that […]