The 2 from the first example comes as a result of using the empirical rule. We want to know a range that captures 95% of our data. According to the rule, we'll need to look at 2 standard deviations on either side of our mean. :^D
For getting the k value for sd, why we are using upper range/value not lower range/value? Or can we use both, if so then the sd would be changed for rule
You're an amazing human being. You've made everyones lives who watched your videos a whole lot easier. Uni is rough man, and youre making this stuff a breeze. Hope everyone who needs it sees your videos and hopefully we can bring in the ad revenue you need to keep doing these vids
Thank you so much, dude. I was so confused about this stuff in my class, so I saw your video and tried to solve it, and it worked! Again, thanks so much, man your the best, and you're a great tutor. Have a great day, man.
You make every problem seem like 1+1=2, when my instructor explains it, she's alllll over the place and makes it so much harder than it has to be. She also adds solutions that aren't even asked for in the original problem.
This is so tempting to do for problems. This is because a lot of things are connected. For the videos I put in a bit of time coming up with a problems and sticking to the core idea. This helps keep me from wandering. :^D
so by normal distribution for the first problem, would you say the distribution would also be either symmetrical or uniform? My statistics class uses different terminology on this.
Suppose IQ(intelligence quotient) scores of people in the world is normally distributed with a mean of 100 and standard deviation of 16 A)what percent of people have IQ scores between 85and 115 B)provide the range of IQ scores for 99.7% of the population Can you solve B one I have solved A one please
my teacher taught this and everyone… actually knew what to do.. but the people in this comment section are making me feel so much safer :) and the video was amazing! Thank you!
Sir? how about suppose that at least 68% of scores in a normal distribution fall between a score of 7 to 10. you need to find the approximate mean and standard deviation of these data. i dont know how to solve it. can you help me?
doesn’t the mean and median need to be the same to be a normal bell-shaped distribution? I found the my data is skewed to the right, yet 100% of the data is within 2 SD from the mean.. did I do something wrong?
crazy how I learned more form this than my stats class.
We are on a same boat
@@comfortthabiso2802 2.6from?
Fr bro
Currently in an MBA and taking Managerial Statistics. Ive learned more from 3, 5min youtube videos than in 9 hours of lectures.
I hate ap stats
i read my book and my teachers notes but this video was IT. thank you
Where did the 2 come from !?
The 2 from the first example comes as a result of using the empirical rule. We want to know a range that captures 95% of our data. According to the rule, we'll need to look at 2 standard deviations on either side of our mean. :^D
is it bad that I still dont understand
You’re a literal lifesaver! Got a quiz due tomorrow and 4 homework assignments and I had no clue what I was doing! So helpful!!!!
Guess who’s watching this on his midterm
Me😅
well explained and the writting is neat and clean..saved me from failing in exam since i bunked my classes
I learned more from your free examples than I ever have from my college stats class THAT I PAY FOR
So far 4 of your videos have saved me. Quick, simple, and to the chase. So helpful!
I think all the good teachers make youtube videos and all the bad teachers work at the university.
I love you 😭 I hope this helps me pass my stats quiz tomorrow
Looks like I might pass this class after all. Thank you for making it feel so simple!
this video is literally a life saver, i'm freaking out cause i have my first stats test tomorrow
I am shocked at how simple you made that!!! Thank you so much!!
For getting the k value for sd, why we are using upper range/value not lower range/value? Or can we use both, if so then the sd would be changed for rule
Your 5 min video helped me understand something that my teacher couldnt explain properly in 1 hour..thankyou so much.
Thank you ! but You had me until the second example 😫 Why did you put K ? Does that represent the unknown percentage?
Fun fact for engineers, this information is important for random vibration.
You're an amazing human being. You've made everyones lives who watched your videos a whole lot easier. Uni is rough man, and youre making this stuff a breeze. Hope everyone who needs it sees your videos and hopefully we can bring in the ad revenue you need to keep doing these vids
Finals tomorrow 😂
Thank you so much, dude. I was so confused about this stuff in my class, so I saw your video and tried to solve it, and it worked! Again, thanks so much, man your the best, and you're a great tutor. Have a great day, man.
Crazy I couldnt understand it in my statistics class today. But you were so good at explaining it so you learned me to understand this term.
I struggled for two days on some Stats homework about the empirical rule. Watched two minutes of this and BAM I understood it. Thank you so much!!!
You are really my secret math tutor🤗
Tell me why this makes more sense than my text book and teacher.....
first view :))
How do you know what the upper number is?
who also is addicted to these paper and pen videos . these people's explaining skills are on a different level
Thank you for breaking this down so well; I have a learning disability, and my fast-paced statistics teacher's style really doesn't stick with me.
Why did you use the top percentage (182.5) instead of the bottom range (137.5) ?
in the second example, how did you come up with 99.7%? just a little lost on that part lol
is it because the standard deviation is 3?
@@laurencarrizales8318 I’m confused on that part as well
You make every problem seem like 1+1=2, when my instructor explains it, she's alllll over the place and makes it so much harder than it has to be. She also adds solutions that aren't even asked for in the original problem.
This is so tempting to do for problems. This is because a lot of things are connected. For the videos I put in a bit of time coming up with a problems and sticking to the core idea. This helps keep me from wandering. :^D
Thank you sir! Had trouble on my last two questions and you clarified it very well and made the two questions much easier to understand.
Thank you so much!!!!!
Hello sir!
Is that 68,95 and 99 remain fixed for one, two and three standard deviations in spite of changing mean value in each question??
Thank you so much! You explain topics very well. 😊
so by normal distribution for the first problem, would you say the distribution would also be either symmetrical or uniform? My statistics class uses different terminology on this.
does anyone know how how he got 182.5 when doing the second example? he does 160 plus what?
Omgg thats so easy!!
Thznk you so much
I hope i can pass and do well in my exam
best channel ever
Thanks man, need it for a test tomorrow. Ur a life saver 🙏🏽
but how do i get the exact percentage?? i have a huge test tomorrow
How did you get the percentage 99.7%? From the answer 3?
You didn't have to do the lower number? Why not?
the way you write 8 bro... bummy shi. good vid tho learned a lot x
it helped thank you
thank you so much omg
I got a test tmrw and i know im about to whoop it because of you. Thank you.
Thank you so much for the explanation
THANK YOUU
This just saved my math grade thank you
Idk why you sound like dream
Thanks! :^D
This guy just saved me
Suppose IQ(intelligence quotient) scores of people in the world is normally distributed with a mean of 100 and standard deviation of 16
A)what percent of people have IQ scores between 85and 115
B)provide the range of IQ scores for 99.7% of the population
Can you solve B one I have solved A one please
JEEZ THANK YOU!
Thank you so much after getting frustrated the whole day and scoring 22/40 I finally stumbled upon this video.
where did the 99.7 come from???
my teacher taught this and everyone… actually knew what to do.. but the people in this comment section are making me feel so much safer :) and the video was amazing! Thank you!
what do we do if "k" ends up being a NEGATIVE 1, 2, or 3? do we just disregard the negative symbold?
I should’ve found you last night and not 30 minutes before my test but thank you 🙏🏻💞💞
That was tremendously helpful. Thank you !!!🎉
"The little prince" vibes
Sir? how about suppose that at least 68% of scores in a normal distribution fall between a score of 7 to 10. you need to find the approximate mean and standard deviation of these data. i dont know how to solve it. can you help me?
I'm cramming for an exam rn and I cant express how thankful I am
thank you so much!!!
doesn’t the mean and median need to be the same to be a normal bell-shaped distribution? I found the my data is skewed to the right, yet 100% of the data is within 2 SD from the mean.. did I do something wrong?
thank you
How do I find the mean?
LIfe saver
for sure
using this mid final
how did you get 12?
You’re blessed.
excellent saw before exam got my concept clear. love from INDIA
I love you guy
THANK YOU!!! :)
thankyousomuch!!!
what does it mean if I get 0 for one percentage and 1 for another?
What if you get an example where K=0?
say less buddy!
This was the most helpful maths video I have ever watched. Thank you so much!!
Thanks a lot....very well explained 👍👍
Thanks a lot!
Thank you sir..It helps me a lot.
Great explaination. Thanks!
I have a statistics test over this tomorrow and my professors never went over any of this. This was soooo helpful, thank you!
I LOVE U
thanks
Would you have to do standard error of mean in the same format ?
where did the 99.7 come from
it’s a rule. Go to the second 0.40 he says it there
@@rachelis7484 thank you
If you don't mind my asking, what do you do when you're subtracting and trying to find the percentage? And in what situation would you be subtracting
also thank you for the video, this saved a lil bit haha
Why the K? Where’d it come from?
Really excellent work 👏 man
Saved my life thanks
Amazing, thank you sir
I appreciate you so much
thank you got a 100 percent on my quiz after not understanding my teacher at all lol
Nice work! :^D
saving me from my statistics test tmrw
Wow thank you so much!
Do I do the same for the 137.5cm like you did for the 182.5cm?
Should work if everything else is similar. :^D
Thats really great!