Finding probability example | Probability and Statistics | Khan Academy

In order to find the probability of picking a yellow marble from a bag, we have to first determine the number of possible outcomes and how then many of them meet our constraints.

Missed the previous lesson?

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!

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to KhanAcademy’s Probability and Statistics channel:

[trdev]

My teacher makes it seem harder than it really is

[bigfungus]

dood, straight to the point, how to do it, easy to understand, TAKE MY you saved me from a 40 on a quiz

[shereebaptiste]

Me:Watches video
Me:Does not understand
Me: Picks a random answer

[danielleu]

I’m in high school and is just now understanding this🤦🏾‍♀️...my teachers were HORRIBLE 😂

[peacefulchaos]

Dear maths...you have officially made me lose my MARBLESSSS!!!

[cloudymushrooms]

Its so straight forward and with just 3 mins he taught us an entire curriculum...

[Wet_Paint]

Is it me, or when he draws it’s satisfying

[sugarplum]

Thank you! I was making it so much more complicated than it actually was :)

[felixqzeva]

Thanks! This was such an AMAZING video. Helped a lot thanks!!

[jenchris]

thank you i understand now








'':>''


























































'' i've never found a teacher who can briefly explain it so clearly thank you again''

[ZoyalAK]

You explained soooo easily, it’s so simple. THANKS

[ysabelle]

thankyouuuu i am in a middle school and i can understand my lessons because of thiss!! thankyouuuu saranghae 💜🥰

[wahaagaming]

This is easier to understand than my teacher teaching us how.

[KaitlynLarkins-ymoq]

Thank you for being such an awesome teacher!! I learn things so easily with you.

[deborahiakopo]

This video is the best explain to the probability

[amAaron]

I understood within 1 minute thank u so much sir

[I-forgot-how-to-draw.]

I had gotten a probability question in my Hunter Preparation testbook, and this video made it very easy to understand. Thank you, Sal Khan!

[infinitebliss]

thank you! i'm relearning statistics and this video was very helpful :)

[ravisiddamreddy]

Thank u so much sir now i am able to do my sheets

[thenick]

I think somebody lost their marbles...