Probability Tree

 LI: To use probability trees to find the chances of an event.

This week in Math, Haylee, Victoria and I worked together to solve probability questions. We were given three different math word story problems to justify the answer of the probability with our working out. We then created a DLO of one question and explained our thinking with the probability tree method. 

Above is the question we answered. To solve this question, we created a probability tree. On our first branck, we added the fractions 4/10 and 6/10 as Maria had 6 frangipani and 4 tiare taina (6 + 4 = 10), making it 6/10 and 4/10. On each end, we wrote a T and F representing each flower. We then carried on our tree. And wrote the same things. After that we wrote all the possible possibilities of Maria picking out the same type of flowers. We multiplied the fractions together, for example (6/10 x 4/10, 6/10 x 6/10, 4/10 x 6/10 and 4/10 x 4/10). After multiplying the fractions, we added them together, so 36/100 + 24/100 and 24/100 + 16/100. Lastly we added 36/100 + 16/100 as they are the changes of picking out the same flower.

We enjoyed working these equations out as we used a different strategy and learnt a new strategy.