Probability Examples with Cards 

I bet your views rocketed this year due to online school. Personally, you just saved my life-I was so lost with maths. I sincerely thank you, your videos have surely had an immense effect on this year's students' competence on math. People like you genuinely have an effect on this world, especially during hard times like this. -Paljon kiitoksia! Greetings from Finland! 🇫🇮

It was great that you used & and Or in the same class. It is very confusing. Thank you

Thanks. Thanks for the website suggestion.

For Q2, I tried setting it up as a combination like you did in Q1. Does it make sense to combine C and P? 4C1* 4C1 / (52P2 since the order matters here King then Ace)

although i don't understand the signs used in question 1, this 6 mins rlly help me. Thanks a trillion Sir Mario!!

Thanks for these lecture it helps me alot

This video really helped me.Thanks man!

Maraming salamat po sir, ( means thank you) love from the Philippines 🇵🇭

Thank you for the slow, clear explanations. I was struggling big time watching other videos and not understanding it until I came across yours.

I was so confused when I was doing this in robotic class so thanks you for the help

Sir u helped me a lot in understanding probability of cards....thanks

That helped me sooo much thx a lot🤗🤗👍🏼👍🏼

Here I am in my middle age studying probability for fun.. strange times.. but thanks so much for your clear explanations!

Very nice concept

Thank you so much!!!! You make it so easy!

Thank you, thank you very much. 👍👍👍👍👍👍👍👍👍👍👍👍

Thank you

Sorry Mario I have another question. “ there is a bag of marbles. 1/2 half of them are red, 1/4 of them are pink, and 5 of them are black. If you reach in and pick two marbles and the first one was red , what is the probability that the other one is also red? Thanks Mario and the answer i got was 47 percent chance. Can you please tell me how to work through this? And by the way I love your videos they are so helpful indeed.

Can I get a hint on this problem?

Thank you! The last problem that you explained is in my textbook but I couldn't understand how the author worked it out until I listened to you explain what (or) means in math and the 13 diamonds and 4 Kings. Thank you for making this video!

Hi, is the first problem with replacement or without? I was assuming its without replacement

Pretty simple to understand Thanks!

Thanks, Mary for amazing explanation. I was bewilded about it!

Can anyone explain why in the first problem we can't do something like 12/52 * 11/51 * 10/50 * 9/49 * 4/48 like how in question 2 it was 4/52 * 4/51? Aren't they both essentially just drawing cards from a deck?

Thank you for making this simple, usually it's made difficult and confusing.

Watching this before my math exam wish me luck I’ll let you know how i did

Thank you .Can you help me finding playlist for probability.

What is the probability that i get a decent grade?

I can use a deck of cards to track 1 out of 2 by using red/black. Suits can track 1out of 4. How can I use a 52 card deck to track 1 out of 3?

Thanks so much! I just got the explanation that I needed that my statistics professor could not provide.

just to consider a different card example, what would be the probability of guessing the right three card combination in a game of clue. the game starts with a blind draw from 3 groups of cards (6 suspects, 6 weapons, and 9 rooms). i came up with 1/324 = 1/6 x1/6 x 1/9; but wanted to confirm. thanks.

eight cards are drawn from a standard deck of 52 cards. how many hands contain exactly 2 spades?

I think the answer is too small, or, better maybe, cannot be calculated. There are 52 cards, let's say 36 black balls (the numbers 2..10), 4 blue balls (aces) and 12 red balls (faces). Total is 52 which is ok. Now, we pick up 13 cards assuming 4 players play the game and all cards are in the game. (That's the point I miss in your story. How many players are there?) We calculate P(4 x red, 1 x blue and 8 x black). Which is: ((12 choose 4)*(4 choose 1)(36 choose 8))/(52 choose 13) = 0.09435

Thanks this really helped me this is the first video in your channel and I subscribed

why you solve ist Q with combination approach can we solve other two Q with combination approach? or can we solve the Ist Q with direct approach as you did in 2nd and 3rd Q?

HAHAHHAHAH Here am i again on another exam and watch another video of marios math but its very helpfull thank you marios math🙂🙂🙂🙂🙂

I shuffled a deck of cards and pulled the 7 of clubs, then i shuffled the deck again and got 7 of hearts, then i shuffled again and then got the 7 of clubs again. what are the chances of this happening with the number 7 being pulled 3 times in a row.

Sir i really found this video prodigiously helpful, Although i have a request for you IF possible can you attach a PDF of some PRACTICE QUESTIONS for students regarding these topics for students to practice and hone their math skills even more?? (Only if you have time) Thank you for making maths easier

thank you so much!!!!

Thank you so much👍👍👍👍👍👍I really understand it now THANKS!!!!!!!!!

Thanks this helped so much for my homework

I was playing the card game "Old Maid" with family, and I started to wonder about probability in that game. You may already be familiar with the game, but I will describe it as I understand it. There were thirty six cards, and three players. (I'm leaving out finding "the old maid" card.) So, we each had twelve cards. The object was to see how many matches you can find. First, you go through your own dealt cards, pick out the matches that are already there, and put them aside. Then, you try to find matches to the remaining cards in your hand by picking a card, each time it is your turn, from your neighboring player. Of course, the other players are also adding and subtracting from their deck by picking cards from their neighbor, and putting aside any matches they find. At first, everyone has a lot of cards, so there seem to be a lot of possible choices. But, as each person gets down to only a few cards, it starts to seem less likely that you would find a match for your very few cards among the other players few cards that they are holding I'm not sure exactly what I am looking for as an answer. Perhaps it is, what is the probability each time you pick a neighbor's card you will get a match, and does that change as the amount of cards in each person's hand becomes fewer and fewer. Thanks for your time, and excellent videos. I mentioned last time I had a question that I am a semi-retired music teacher trying to learn more about math. Thank you!

thanks sir this helped me very much !! :)

Thank You soo Much!! helped me a lot

I got stuck in the first exercise when I was calculating the factorial. what is the final ansawer, please?

Mario please help me in understanding this scenario. You take out 2 cards from the deck of 52 and don't look at them. You have a 2/52 chance of the Ace of Spades. You look at one and it's wrong but now the other card you have has a 1/51 chance instead of a 1/52 chance. This action causes the probability to be slightly better than the original 2/52 and it's really bugging me, lol.

How to simplify tho?

Thank you sir its helping me a lot

where is the five coming from

really really helpful!

Bien expliquer

Thanks sir. Please keep it up.

Thanks

sir What is combination and permulations

Thanku sir

Mario I have a question. My question says that “Bob selects a card from a standard 52 card deck . George selects from a separate deck. What is the probability that both picks a queen.” Thank you and can you’ll tell me the answer and how to work through it. I need this quick

Thank u sir

i zoned out after he started saying "factorial"

Mario I have a question. My question says that “Bob selects a card from a standard 52 card deck . George selects from a separate deck. What is the probability that both picks a queen.” Thank you and can you’ll tell me the answer and how to work through it

mario i have a question with a spinner with 4 sector, but it says sector 1 has twice the area of sector 3 and if the arrow is spun once what will be the probablitiy that the arrow will land in sector 1. thanks

It’s not really making any sense…The disguising factor of when to use the fraction approach for probability and when to use the combination approach where you 12C4*4C1/52C5 is not clear. Saying that there are baring approaches and sometimes it’s easier to use on over the other is a poor answer. Especially when the probability concept was introduced using fractions.

i can't understand it. plz help me

From india

I still don't get it

Hello can someone answer my question

I dont get it!! cant understand it bruh

What?

Too complicated for me. Hard to understand. I need help😞

Taklu

Thank you

Thank you