Probability Tree Diagrams - How to draw them : ExamSolutions Maths Revision

How to draw probability tree diagrams.
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[@shaharizard4413]

Danke, I from the Deutschland, and zis video halp me lots
As I a gambler

[@abishekpoudel9641]

Nice video sir

[@laibaimran6916]

A level Math is Hell.
Thank you so much for these.

[@laibaimran6916]

Shaiba aa Yeah, Tough Luck.

[@Luke-wb9vc]

got my exam in less than an hour, thanks for this

[@lizan6619]

Thankzzzzz this helped me for my exam in mondayyy 😊😊

[@ExamSolutions_Maths]

That's okay. Hope you got a good grade.

[@34naveed]

Is all this s1 playlists for as maths or GCSEs

[@minamisensei7952]

Can someone please help me with conditional probability, why does this differ from the usual examples where we put probability intersection of A and B / probability of A ? And how do we know whether this example is mutually exclusive or not?

[@the_growth_mindset.]

Speed x2 = Learn Quicker

[@dmanlaw8652]

harry james quick maths

[@Sean-pd9fh]

hax.exe

[@mehrankhan-vx6nn]

thanks a lot this has really helped me with my revision for my exam.

[@sabrina9599]

hi,just wanted to say thank u for your videos.They are helping me soo much.I don't know what I would do without those as my teacher is just sooo lazy and does not explain the chapters properly as you do and added to that I don't take any tuition.so,thank you very much

[@ExamSolutions_Maths]

No problem. Pleased to hear the videos are helping. Thanks for the comment.

[@sajjaadkhan3506]

Extremely helpful thx

[@mi3551]

thnk you!! really helpful

[@geometrydashlover2074]

Thanks

[@Criminalevi87]

cant find part 2

[@sachnwa1997]

Thanks really helped I hope I get at least a B on my s1 exam!

[@ExamSolutions_Maths]

Good luck

[@estherk7820]

👌

[@kritinthapa29]

you have explained in a very easy way

[@ExamSolutions_Maths]

Cheers

[@tamim3463]

wait a minute. I dont know if im worng but in the question it say TWO sweets where taken at random so wouldn't it be 3/6. someone clarify this for me. Thx

[@cameronlambert7374]

The two sweets being taken out are represented by the two "branching outs" on each tree. Not quite sure what you mean by the 3/6. The sweets are taken out one at a time not both at once so when a sweet is removed the total number of sweets only goes down by one. hope that helps

[@tamim3463]

+Cameron Lambert
thank you

[@sweetpotatoe5722]

Tamz you are right

[@malcolmduodu2121]

tree diagrams are relly confusing

[@danielmwenda3907]

Help me , I am studying secondary diploma in mathematics

[@HanaYuki12]

so when it says with conditional probability, it means there is no replacement???

[@cameronlambert7374]

Yes. Because a sweet has been removed from the bag, the probability of picking a red sweet or blue sweet has changed depending on which sweet was removed. For example, in the right tree diagram where the sweets are not replaced, before a sweet is removed from the bag the probability probability of taking a blue sweet, P(B), is 3/8. However if a blue sweet is taken out of the bag, the probability of picking a blue sweet is now 2/7 and the probability of picking a red sweet is 5/7, because that blue sweet is not replaced. The conditional probability notation is basically explaining that the probability has changed because one sweet was removed. So in the example, the probability of picking a red sweet now that a blue sweet has been taken out is written as P(R l B), or the probability of picking a blue sweet now that a blue sweet has been taken out is written as P(B l B). Hope that helps. :)

[@raaedaram7234]

Nice

[@raaedaram7234]

English