Probability with playing cards and Venn diagrams | Probability and Statistics | Khan Academy

Probability of compound events. The Addition Rule. Common Core Standard 457 S-CP.7

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Probability and statistics on Khan Academy: We dare you to go through a day in which you never consider or use probability. Did you check the weather forecast? Busted! Did you decide to go through the drive through lane vs walk in? Busted again! We are constantly creating hypotheses, making predictions, testing, and analyzing. Our lives are full of probabilities! Statistics is related to probability because much of the data we use when determining probable outcomes comes from our understanding of statistics. In these tutorials, we will cover a range of topics, some which include: independent events, dependent probability, combinatorics, hypothesis testing, descriptive statistics, random variables, probability distributions, regression, and inferential statistics. So buckle up and hop on for a wild ride. We bet you're going to be challenged AND love it!

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[bcnicholas]

Probability is one of those things for me that should be super easy but I feel like I'm always doing something wrong. Thanks for the help Sal.

[teresahope]

Thank you, Mr. Khan, for providing the Common Core Standards. I know it is an extra step for you, but this teacher appreciates it. (Yes, as a teacher, I enjoy your videos. Sometimes, it makes me rethink how I want to teach the same subject to reach my students.)

[naeberries]

Thank you I was very confused over the whole deck of card probability and other tutors here weren't explaining how this even works so thank you, I needed this and I feel more confident in taking my exam :)

[jeffb.]

these lectures are great. Thank you very much for taking your time to do every one of them..Also, your handwriting is awesome.

[Usha]

Thank you so much. I had confusion in the “or” thing for so many days. Now I’m clear.

[eryktachibana]

The other way to do it
Without the venn diagram
Is

You know you have 4 jacks
13 hearts
And 1 in common

4+13 From (4/52 jacks and 13 /52 hearts)
= 17


-1 that they have in common which is a jack that’s also of hearts

=16

But obliviously the visualizing way you did it is great
When you are starting to get it ^^
Thank you so much I absolutely hate math and chemistry and avoid it like the plague

But I ended up stuck with bio -12

That has some chemistry

And data management
Which has statistics and probability math

Which I need for psychology
Practice for Uni

So videos and teachers like you really will help my heavy angst and anxiety
When I don’t naturally “get it”

[vjay]

beautiful explanation! thank you sooo much!

[luisalmanza]

Mann these video have been helping a lot whoever you are thanks a lot.. its a real service

[moez]

thanks Khan this helped i have a test and im really freaked out but this just made me rest well ready for the test

[Jayne_Yay]

I understand probability, it's always the deck of cards that gets me stumped. I always forget the suits and amount of cards and how many cards, hopefully this will help!

[enzocypriani]

It would be of easier understanding if, in Venn's diagram, you put 'three' in the Jack's circle, 'twelve' in the Heart's circle and 'one' in the overlap. Besides that, great video, as always. Greetings.

[ahmedsaeed]

Amazing. Best one I saw explaining "Probability with Playing Cards"

Thanks

[ikmoestLucaslezen]

In your last calculation, 'probability jacks or hearts' I think there should be added something more :

either you include jack of hearts to that : [P (J and/or hearts)]
or you do not include the jack of hearts : [P (J or hearts)], meaning that it can not be both jack and hearts

in the last case there should be substracted 2 in stead of 1 in the ending sum :
P (J or hearts) = (13+4-2) / 52

if i would be making a mistake saying this please notify me on that :-)

thanks for educating me! :-)

[tharunishadi]

because, YouTube always provide the best pal !!..

[flutestarz]

At 8:40 he means (4+13-1)/52. He doesn't mean (4+13)/52 - 1, which would make the probability negative.

[h.]

Okay I kind of understand a little bit. I was just sitting in class staring at the board not knowing what the hell my teacher was talking about l.

[benderbendingrofriguez]

do you have a video dealing with Yahtzee probability?

[janejones]

this video is nice enough. however, why are khanacademy videos coming up as the highest rated no matter what probability/statistics videos I search for. This is impossible. Either khanacademy is telling people to vote for them, or google/youtube is weighting in favor of khanacademy videos.

[jyduality]

Thank u so much Khan Academy, u have no idea how much you've helped me man.

[ThePeterDislikeShow]

Do a video about poker strategy and probabilities or perhaps card counting in blackjack