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Exactly three heads in five flips | Probability and Statistics | Khan Academy

Frames Exactly three heads in five flips | Probability and Statistics | Khan Academy

Description Exactly three heads in five flips | Probability and Statistics | Khan Academy

Comments Exactly three heads in five flips | Probability and Statistics | Khan Academy

In my personal testing getting head by flipping a coin 5 times is way less probable than getting hit by your girlfriend after telling her the experiment Comment from : HerogamerLP

I'm very confused Why didn't you also account for the two missing spaces, those two also have a change of having either a tails or head Comment from : Apartus

well done, thanks, finally someone explained!! Comment from : Oscar Pereira

probability sux fr Comment from : ETERNITY 永遠

Most people say that if you flip a coin you have a 50 chance of landing of heads, and a 50 chance of landing on tails But some peoples say you have a 51:49 chance depending on the side the was upright Well both of these theory’s are wrong When flip a coin you have to account for every possible situation that could happen There are actually 3 possible outcomes of flipping a coin The first outcome is landing on heads The second out come is landing of tails The third outcome of flipping a coin is actually landing on the side, with both head and tails facing sideways Now as we know this is more rare for this to occur But how rare? And how does this change the probability of a coin landing on head vs tails Comment from : Jerry the duck

Is there a video for probability that the coin lands head up At Least 2 times? Comment from : Sparklight 0

THIS FINALLY MAKES SENSE THANK YOU!!!!!!! Comment from : Mint Éclairs

Thanks Comment from : MrWoW

I usually do not comment but this one deserves it it has really helped me Rather than useless content I was expecting it actually was great and exactly what I was looking for Comment from : Bakhtiyar Ayazbayev

How about 3 consecutive heads? Comment from : Philip Truong

best technique ever! Salute! Comment from : MI-49

Thanks sir! Comment from : Manisha Chanda

Awesome technique for explanation -without formulas maths Comment from : kuppuswamy ts

I know finally understood how factorial works Comment from : Philip Aton

This is very hard to understand Will you do it easily? Comment from : Shamsul Huda

Thank You so much I did a problem using your solution and I got the problem right This is usually not the norm for me I was doubting that it would work; but I have it now ❤️❤️❤️❤️❤️❤️❤️❤️❤️💥💥💥💥😚😚😚😚😚😚 Comment from : Bible Girl

32 possibilitiesbr1:23 5 Flips Comment from : Michael Pisciarino

Really appreciate how this video actually takes the time to explain the why/logic behind Exactly what I’m looking for Comment from : YF C

basically he derived binomial coefficient formula "n over k" Comment from : Ivan A

Why in the world is 5/16 the answer in our answer key in school that says exactly that problem?! 'A fair coin is tossed five times What is the probability of getting exactly three heads?'! Comment from : Mugimoto

Whaaaaaat did not process any of that Comment from : Mia Treadwell

Ever hear of probability What comes after probably " Probably , But I don't know" Comment from : zippy

this seems way overly complicated and the most confusing crazy video I have ever seen! Comment from : Vegan731

I always refer back to this video It is soooooo helpful! Thank you so much bhigh five/b Comment from : Desarai

C(5,3)/2^5 Comment from : Ivan Fan Tang

I didn't get that 3*2*1 thing! :( Comment from : Advait Deshmukh

5C3/2^5brDone Comment from : John Smith

So if it were exactly 4 heads, I'm guessing it would be 4x3x2x1 Comment from : Angel

He did 3x2x1 to have 6 possibilities to move each around, and in the last video he just said 2 possibilities and didn't show that it was 2x1 Comment from : Angel

What if the chances of getting and outcome is not 1/2 but rather 1/10 vs 9/0 For instance at a casino your chances of winning are 1/10 What are your chances of exactly 2 wins given you play 20 times? Comment from : Niecee44

y should we take 3 spaces at 4:49 Comment from : reminya

why cant we just divide 60 by 3 cuz there are 3 heads like we did in the previous video We divided by 2 for having two heads?????? Comment from : reminya

Why wouldn't you just explain the Combination formula xCy? Comment from : Manny M

@ojdidit34 haha oh you Comment from : Spiny Norman

Mr Sal, I love most all of your videos and fully respect your wisdom This video however begs the question in my mind of how many fucks will not be given by the total number of views this particular video receives Comment from : Paul Atreides

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