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umm its like P(AB) = P(A) X P(B) where A and B are independent events and their outcomes do not affect each other. I know the meaning but I cannot seem to get my mind around using it for this type of question, ur thoughts tim?

yeah thanks, just one last thing - could you use product rule for the question? i just need to know how you can do it that way - thanks for evrythin so far

thanks timorty, right answer as well =) just one thing, could you show me how to do the question or explain it using product rule, tree diagram or a combination of both. and also, i was wonderin why u can use 1- P(all different colour schemes), why is it that P(at least two rooms are same...

would anyone be able to do the last question (at least two rooms have identical colour schemes - the probability of it) help would be much appreciated!!!

oy kurt, i had a tree diagram with the 1st room (living room) and then the 3 wall colours sprouting out of that with the ceiling colours sprouted out of each wall colour. Then i did the same for each room underneath it. I still dont understand the part bout using 18 branches from the ceiling...

oy kurt, one thing man, my tree diagram in total has 24 options, do u think this is right? i got the 4 type of rooms in order and then the 3 wall colours to each of them with two of the ceiling colours sprouting out of that ,forming 24? but i dunno how a is 1296?

no problems kurt, would u mind if u solved the ones u got wrong? would be a great help =))) thanks in advance

oy kurt, thanks a lot for the help. It is just unfortunate that some of your answers are wrong and here are the solutions. By the way, at the start why did you say that there were 8 rooms when there were only 4? a. 1296 b i. right ii. right iii.1/16 iv. 1/27 v. 13/18 thanks...

just one more question if you please? 11 Rachael purchases a townhouse ‘off the plan’ and the builder offers her a choice of colours for interior painting. The walls can be cream, light blue or light green, and the ceilings vivid white or off-white. Different colours may be chosen for...

hey thanks to evryone who responded and tried to solve this question. Sorry for not putting in all of the question (my fault to many who could have solved it otherwise). thanks trebla for solving !!!!!

sorry for double post. thought 1st one didnt come through

here is a screenshot of the question (i hope u can see it guyz and galz) thanks for the responses. good luck solving it (this comes from mathsscape yr 10 ext text book btw).

here i've tried to take a screenshot of it (i hope u can see it - anywayz this question is from mathscape yr 10 extension text book) thanks for the responses. good luck solving it, lookoutastroboy

There is a spinner. It has 12 slots with 4 1s, 2 2s, 3 3s, one 4, one 5 and one 6. What is the probability of at least two different scores? This is an elementary question from Yr 10 but i figured people from this forum would have little trouble to tackle it. If you can, please explain it in...

solution btw if you want to attempt the question is 271/288. kurt physics, im currently looking through your working out and thanks for atttemtping it. if anyone else wants to have a go at getting the solution with a detailed working out, feel free. thanks...

There is a spinner. It has 12 slots with 4 1s, 2 2s, 3 3s, one 4, one 5 and one 6. What is the probability of at least two different scores? This is an elementary question from Yr 10 but i figured people from this forum would have little trouble to tackle it. If you can, please explain it...

last thing if you can, could you show in detail the working out of the last question 2 e please? ty in advance, lookoutastro

lyounamu, why is his 139/144 question wrong? the working looks alright but could you explain why? ty,

Here are the solutions: 1. v. 35/72 vi. 47/48 2. i. 1/2 ii. 1/52 iii. 1/26 iv. 15/26 v. 1/169 For the questions, could you please keep to the product rule in each as the textbook has specifically (Mathscape yr 10 ext) made each one aligned to it. Thanks again for...

Thanks for trying suzlee, but most of these answers are wrong unfortunately :S Any more help would be appreciated guys and gals =)