Conditional Probability - GCSE Higher Maths
A video building on the ideas from probability tree diagrams. This video looks at how conditional probabilities are calculated.
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0:00 Intro
0:23 Example with Tree Diagram
3:51 Example without a Tree Diagram
7:46 Another Example (a game with cards)
12:32 Another Example (numbered counters in a bag)
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Пікірлер: 23
literally telling everyone abt this channel
honestly you guys are the best i've never been ale to do these type of questions, I'm so grateful, thank you!!
@1stClassMaths
6 ай бұрын
Thanks! Although theres not guys, its just me on my own!
@Goange702
2 ай бұрын
@@1stClassMaths ur a great math teacher im stressing and also im doing foundation so i wont get harder questions like the ones in the video?
Excellent. Thx
@1stClassMaths
6 ай бұрын
No worries!
Great video if you approach the sums using a tree diagram . However , could Bayes' theorem be used in the same examples, its hard to know when to use the formula or using a tree diagram ?
@1stClassMaths
3 ай бұрын
Hi. You are effectively using the theorem when calculating the probabilities but we do not teach the theorem really until A-Level.
helps a lot thanks, do you have a video on vectors?
@1stClassMaths
7 ай бұрын
Not yet but its on my list to do.
@user-uj1zw5eq5l
7 ай бұрын
thanks. Your website is very useful as are your videos. saving my gcse's.@@1stClassMaths
when it is 12:19 how do you take away 1-24/6840. On my calc i keep on getting weird decimals
@1stClassMaths
4 ай бұрын
If you got 0.9964912281 then this is also acceptable.
@bordyz5463
4 ай бұрын
@@1stClassMaths man u guys deserve a sub
Hi. on ur paper 2 topics, it states ‘successive events’ probability, is this it?
@1stClassMaths
2 ай бұрын
This is an example yes
Why it is not the probability that represents randomly selecting 2 sweets of the same flavor without caring any information?
17.38
14.11
How we know the difference between conditional probability and the tree diagram(dependent probability)questions??
@1stClassMaths
Ай бұрын
Conditional ones will not appear on the foundation paper. You need to check the language carefully to determine if the probabilities change. Another thing is where it comes in the paper. If it is early on it will likely be dependent, later on will almost certainly be conditional.
@AshniCarvalho
Ай бұрын
@@1stClassMaths thank you so muchhh🫶🏻
12.22