Conditional Probability With Venn Diagrams & Contingency Tables

This video tutorial provides a basic introduction into conditional probability. It explains how to calculate it using sample space. It includes example problems with venn diagrams and contingency tables.
Introduction to Probability:
• Introduction to Probab...
Probability Formulas:
• Probability Formulas, ...
Probability Explained:
• Probability Explained!
Probability With Geometry:
• Probability With Geome...
Probability of Complementary Events:
• Probability of Complem...
Conditional Probability:
• Conditional Probabilit...
__________________________________
Independent and Dependent Events:
• Probability - Independ...
Probability of Mutual Exclusive Events:
• Probability of Mutuall...
Multiplication and Addition Rule:
• Multiplication & Addit...
Compound Probability:
• Compound Probability o...
Expected Value:
• How To Calculate Expec...
Probability Tree Diagrams:
• Probability Tree Diagrams
___________________________________
Bayes Theorem:
• Bayes' Theorem of Prob...
Probability - Binomial Distribution:
• Finding The Probabilit...
Probability - Geometric Distribution:
• Geometric Distribution...
Probability - Poisson Distribution:
• Introduction to Poisso...
Continuous Probability Distributions:
• Continuous Probability...
Probability Density Functions:
• Cumulative Distributio...
__________________________________
Probability - Uniform Distributions:
• Continuous Probability...
Probability - Exponential Distributions:
• Probability Exponentia...
Probability - Normal Distributions (Calculus):
• Normal Distribution & ...
Probability - Standard Normal Distributions:
• Standard Normal Distri...
Probability - The Law of Large Numbers:
• Law of Large Numbers
___________________________________
Final Exams and Video Playlists:
www.video-tutor.net/
Full-Length Videos and Worksheets:
/ collections

[@TheOrganicChemistryTutor]

Final Exams and Video Playlists: www.video-tutor.net/ Full-Length Videos & Worksheets: www.patreon.com/MathScienceTutor/collections Next Video: kzbin.info/www/bejne/ooiklYOvq9JnZpI

[@ezugwukelechi9632]

Good day Sir. Thank you for all you do. Your channel have been of immense help to me various ways, more help than my school lecturers ever were. Thanks so much, may God multiply the blessings in your blessed life on my behalf, Amen. Please Sir, I need your clarification on question 2 B 12:18 . To me, you are a demi maths god but I beg to disagree with you on it. In my thought, it's either you want to test if we are paying detailed attention to the formula or you got it wrong. From what I have learnt from you and what I know in probability, the solution should be as follows: P(Br|M) = 70/90 = 7/9 Or P(Br|M) = P(M and Br)/P(M) =(70/200)/(90/200) = 70/90 = 7/9 = 0.7778 = 77.78%. Please correct and clarify me if I am wrong. Please tag me when you do. Thanks

[@darkhelm2545]

4:52 i swear u draw the venn diagram wrong?

[@stanlee1262]

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Thank you very much for your video. Now I clearly understood conditional probability with Venn diagram amd Contingency table. Once again I am so glad and thank you very much

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[@navajohnny76]

Circle A=150 total. Here circle A contains 150+30=180. Start with the shared portion(intersection of A and B), then subtract that from the 150 & 180.... but I could be wrong. I came here to learn from the master.

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I think the intersection of a and c is only an indication of how much students from a and c are taking both subjects.

[@efennervideos2206]

I agree--the discrepancy really threw me off. Wording of the question should change, if 150 is not TOTAL number of students taking Algebra, but 150 taking ONLY Algebra. Weird that I'm writing this 2 years later.

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[@mxolisinzimande7012]

At 5 min, The question says 150, but on your vann diagram we now have 180 students taking algebra, Please explain further. Isn't suppose to be 120 and 30, vs 150 and 30?

[@chilufyachewe3843]

yes i also thought so because they are also taking the course

[@elizabethbachicha]

No, he wrote down P(A) and. P(B) down without subtracting P(A n B) as is typically done. So... he didn’t have to subtract and then add it back in later.

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Yup the Venn diagram is indeed wrong. That’s why you have to be careful with online resources.

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150 students are ONLY enrolled in algebra, 30 students are enrolled in both algebra and chemistry, 80 students are ONLY enrolled in chemistry

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[@mamuzouakpo376]

The venn diagram looks pretty wrong at 5mins

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It proved to be an important point of discussion. I was thinking that same. 150 is the number of only Algebra. 180 is the number of Algebra students total.

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