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COCCmath
Добавлен 21 окт 2008
Видео
What3Words (potential solution for multiple addresses)
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What3Words (potential solution for multiple addresses)
Video 4!
Просмотров 4521 день назад
OK, hippie - where do those test statistics come from? And what's the deal about "practical" versus "statistical" significance, again?
The hair-do is an epic mix of Glenn Plake and Beavis. Which is what I think you are going for.
PLAKE!!!!! <3 <3 <3
You are an absolute legend
Treasure you! <3
Wow what a simulation of bell curve, maths is great when it is applicable in real world
Indians are masters of maths Indians only introduced negative numbers abd zero to world
I am from india a bsc statistics former student, and my mind processes same like yours in terms of statistics, and no one in the world teaches statistics with that enthusiasm and dedication, i love your practicality in comparing real life examples which you later reflect into your basic statistics data analysis, shows whole new procepective of learning statistics I love you dear sir even tho i am not your student practically, hopefully i born in next life only to learn statistics with you Love from India,
Thank you SO much!!!!!!!!! You saved me so much work, you don’t even know 🙌🏼
oh YAY! This makes me happy! <3
The best teacher in history!
Awwwwww. :)
the best video bro
wish the housing prices were the same nowadays!
Goodness, yes!
Thank you for your help. I know it was just for your class but it helped me for my statistics class!
Oh YAY! This is always my hope! Yay! Be well, friend!
Where's the Wendy's visor, Sean??
At home! These are my *work visors. :D
Keep it up sir.
Great explanation
Thank you so much!
Thanks brother i was always curious how the nCr entered this 😅
You're so welcome! I always hated that it was never made clear when I first learned it. :)
love the enthusiasm !!!!! KEEP IT UP
When I started teaching, my principal gave me a post it note that said "I give him 2 weeks and the enthusiasm will be gone." That was 1997. :D
How and where would I add in an extra payment? For example, let us say 3 months in I have some extra cash lying around and I just want to add that extra cash in for just the one time. Thanks!
Hey there! Personally, I'd just add another column (D, maybe) and let that be an "optional overpay" column. Then, you can sum columns C and D into column E, which can be your new balance column, and then have that be the one that points to the next line (that way, if you don't overpay in a given month, you can just leave it blank, and Sheets will treat it as a zero). Hope that makes sense!
you are awesome like my professor who gave me a refresher in this stuff briefly during a cell and gene microbiology/aseptic class @ccp.
Yay! So glad it helped! "Just In Time" works well, very often. Take care!
TY
You're welcome!
My 1st billionth second will be this year!! woah. On November 23rd, 2024 at 6:25am! I definitely will be savoring that moment :)
This makes me indescribably happy!!!!!!!! :) :) :) 😀😍🙂
I don’t know what the next question is! ;)
I WILL DRIVE IT DOWN TO YOU 💕💕💕💕💕
@@COCCmathNow *that’s* commitment. 😊
This was helpful. :)
OH MY HOLY SWEET ALANIS HIIIIIIIIIIIIIIIII 💕💕💕💕💕
😂 You crack me up.
Hello
👏
Where can buy app
It's Excel, but any spreadsheet would likely work.
This is awesome, thank you! Learning. I'm keeping mine as a relative reference, and adding my monthly payment each month. Also adding an area with the interest rate, then using that area into the calculation you did, so I can just duplicate this sheet, change the rate for the next card, change the starting balance, the payment i'll be making, and have a whole new sheet.
Badass! So glad it helped!
My brain went straight to 2.2 pounds x 157, why is this wrong?
Hey there! Well, the first thing that comes to mind is that a kilogram is heavier than a pound, so you'd have to be multiplying by a number *less than one to convert. Any idea where you got the 157?
@@COCCmath 157 pounds to convert to kg as on the board. So 157 x 2.2 ?
Ah, apologies! The "157" was the number of pounds *I was using! Missed that part. :) My students often ask "When do I multiply, and when do I divide?" for these kinds of questions. The answer is, "You can always multiply", but you need to keep track of the units. You've correctly identified that there are 2.2 pounds in a kilogram, but if you multiply "157 pounds" by "2.2 pounds per 1 kilogram", you'll get the unit of "pounds squared over kilograms." You don't want to multiply by 2.2 pounds over 1 kg, but, rather, 1 kilogram over 2.2 pounds (you can actually see that unit fraction in the screen cap of the video). @@DizzDolly
❤❤
<3 <3 <3
WHOA! you are wonderful
Awwwwwww....thank you. Hope it helped. :)
so if i have a item that draws 1 kwh and the power company charges me $0.25 per kwh and i let that item run for 3 hours would it be counted as 3 kwh or still 1 kwh?
Hey there! Whether you run a 1 kW item for 3 hours, or 3 individual 1 kW items for an hour, that's three total kWh. And now, you've made me think of something else I might add to this video. :)
I'd rather know how the power meter measures the power usage with changing loads. Great video regardless.
Hey, thanks! Fun one to make. :)
Thank you! I looked at videos for two days and they weren't much help but yours was exactly what I needed!
Oh, I'm so sorry you had to look for two days! But I'm also glad this was what you needed. :)
Karala.gussing.send
Dumb question on this, say about 3:15 you said you're using an old algebra trick, you're able to flip the fractions and they're still the same, why did you decide to do that in this case? Sorry if this is obvious to others, self teaching is a beast.
Not a dumb question at all, friend! I just wanted to get the variable I was solving for (in this case, "n") up in the numerator. That just seems to make more sense to more students. :) Hope that helps!
My dude I cannot thank you enough for this video. I've been doing data science without a formal degree for 10 years and just got a senior position, this is helping me put names to faces on this stuff.
Oh hells yeah! That makes me happy! And congratulations on your new job! You're so welcome! <3 <3 <3
This is awesome! Thank you!
You're so welcome! :)
Thanks Sean! Fractions are my least fav.
Jen! Hello! You reach out to me any time you need to! I'll get right back to you. :)
The Wendy's visor!!!!! Miss spending mornings in, intro to stats. Be well brother. Tell Jacquelyn Tony says high and give Julie a high five for me.
What is the link to this program and how do i get this to work?
It's just a random number generator in Excel!
this video is super helpful thank you!!
You're so welcome! :)
I still see your video even though I don’t have your class, it helps when you break it down.
Great!
I haven't done math in over 20 years, and just guessing before I watch it but isn't it something like a probability of point five?
Not a bad estimate! For 19 people, it's about 38%...but it jumps to 0.5 around 23 people!
@@COCCmath Thank you for the reply. I will be sure to watch the follow up video when I have a free moment.
You are EXTREMELY LUCKY that you have Mr. Sean as a teacher. Like very lucky! I wish I had him this term.
Such a great explanation, thank you so much
You're so welcome!
That was very helpful. What if the Actual paymnet made was higher than the reguler payment? For example- if you wanted to pay more per month?
Hey there! Thanks for the comment! That's the best part of the spreadsheet being set up this way: you can just try a different payment a see what happens. :)
Thanks for taking the time to compare these strategies in a quantitative manner. I wanted to ask though, Ii you took the opportunity to say double the trial length, Did results ever change in favor of the pop-pop strategy?
Hey there! Thanks for writing, and for the great questions! You can show (using probability) that neither strategy has a *statistical advantage over the other (although Pop Pop's method certainly is easier to fill out the ticket!). The reason I use this problem is so that my students can see how a margin of error can be used to either support or refute statistical significance. Of course, with Powerball, you know exactly how many possible tickets there are (almost 200 million!) so you can enumerate exactly how many winners there are. In research statistics, you have no such luxury, in general - you usually can't enumerate the population. So, you draw a random sample and add a MOE. Your question also made me think of the comparison of practical versus statistical significance: sure, we could run the randomizer as many times as we liked (assuming you had a better CPU than mine!), and, perhaps, one result might show a slight advantage (due to decreasing MOEs with increasing sample sizes). But, again, that's a slightly convoluted strategy - almost like repeating an experiment until you get a result you desire, and then stopping. But! Therein lies the catch-22: in this case, we can show (probabalistically) that there is no difference in the two methods. But that's only because we can exactly enumerate the possibilities. In research stats, you generally *can't...and therein lies the need for controlled, unbiased, replicated experiments: tO tease out what might (or might not) be there, and to analyze the chances that we're wrong. Be well!
Can we get graph
Not sure I know what you mean.
How we get 1.05 in calculation
That's the interest rate we assumed. You can use any rate you like.
Awesome, thank you
You're so welcome! Thanks for stopping by!
you have NO idea how happy I am to learn that you will be teaching this year.. for the slow learning people like me is an EXTREMELY happy hopeful moment.. THANK YOU so much!!
I'm happy, too, Lia! Yay! <3 <3 <3
1:20 I do not understand why if we do not take the modulus, it will average to zero. In this sample set, it averages out to zero, but how is it possible for all data sets? Please help me out here
Hey there! Is this what you mean - around 6:30? Try this: ruclips.net/video/B3Gcn_e1Ako/видео.html
@@COCCmath Oops! I commented the wrong timestamp. I can't believe you replied even after all these years and uploaded the explanation in such a short time. I saw the explanation you uploaded and it makes perfect sense to me now. Thank you very much!! On a side note, I just discovered your channel and I was just wondering whether you are a college mathematics professor. Anyway, thanks for this amazing video as well as for solving my doubt.
@@EEShyama Dear friend! Not at all a problem! It was fun! :) And you're so welcome! I do teach at a community college (Central Oregon Community College in Bend). Feel free to poke around the channel - it's a little chaotic; I don't do the best job of keeping things "top down" organized (kinda a combination of ADD and having this channel for 15 years now). :) Be well, and thanks again for the great question!!! :)