This video briefly demonstrates how to construct a grouped frequency distribution for a data set with a large number of observations and a large range.
Пікірлер: 146
@before1202 жыл бұрын
I did very well in my first stats class, but three semesters later, I'm taking a pre-req psych stats class and needed a refresher in creating thorough freq. distribution numbers. Yours is the only clear, detailed explanation I found showing everything relevant; thank you!
@its_mows3 жыл бұрын
U may have my first born child as tribute. Thanks for this
@OnkaOLB2 жыл бұрын
Mine as well, thank you
@thefruitiestvegetable2 жыл бұрын
Y'all are bold fr
@markchirwa1610 Жыл бұрын
😂 😂 😂 😂
@markchirwa1610 Жыл бұрын
Statistics 😫😫, am a student at Lilongwe University of Agriculture and Natural resources in Malawi buh this thing called Stat will kill us 😫😫😫
@fennygypsy Жыл бұрын
😂 😂
@underthehazeltree45144 жыл бұрын
This is such a great explanation! Thank you so so much!
@zionious6657 Жыл бұрын
Wow you’re brilliant and generous best combination that Most professors should have thank you
@christopherpadilla7152 жыл бұрын
Thank you!! This helped with my Statistics hw immensely!
@sailorwinx96803 жыл бұрын
This is helpful, THANK YOUUUU FOR THIS LESSON
@yelenavillegas94352 жыл бұрын
Thank you so much for this video !
@Izemartinez Жыл бұрын
This was so easy to understand, thank you sir.
@shahfaisal96745 жыл бұрын
Tnxxx a lot from the core of my heart
@user-xw1nu3wk7o10 ай бұрын
Thank you so much for your dedication to teaching young minds!!!!!!!!!!!!
@nuvannicholsonhaspe26313 жыл бұрын
Thanks. This video is a big help to me.
@nikitasalikram1306 Жыл бұрын
This was so utterly simple to understand thank you so much
@jwalanemtamboneria86442 жыл бұрын
What if the number of classes it’s not specified how do we calculate the width ?
@hawajaaffari44012 жыл бұрын
Thank you so much. Before I couldn't understand how can divide a suitable group. Be successful
@kimkim94972 жыл бұрын
Thank you so much I was so confused but now I get it now
@dkedztouch48563 жыл бұрын
This helped a lot thank you
@REEMA-mo3hf3 жыл бұрын
Thank you so much statistic is easy in this way👍🏻♥️♥️♥️♥️
@natalleeayman7880 Жыл бұрын
thank you! YOU ARE A LIFE SAVER
@saeedsanusi72603 жыл бұрын
This is a good video it helps me a lot
@ChrisellaJung3 жыл бұрын
When you round off. You can only add one or increase the number when the decimal is 5 above right? So why is it 14 when the number with a decimal is 13.3 that when you round off, shouldn't it be just 13? Thanks for whoever can answer me.
@lancefuentes58523 жыл бұрын
same thoughts. i got confused as well
@009Raines3 жыл бұрын
right yeah this part is confusing the class width is higher than second largest value for me
@maymay65723 жыл бұрын
Because if you will use 13, the highest data will not be included in the table
@RNP093 жыл бұрын
It should always be round up
@RNP093 жыл бұрын
And he said that round "up"
@ericphilip3 жыл бұрын
Thank you big time!!
@fennygypsy Жыл бұрын
🥳🥳🥳 I passed my sta116 exam, thanks to vidz like yours
@Natalie-zz5ko Жыл бұрын
thank you! This actually helped!
@elagopaulus30173 жыл бұрын
THANK YOU VERY MUCH!!!!!!GOD BLESS YOU!!
@relebohilemafeto45544 жыл бұрын
How to draw histogram from the class boundaries starting from - 0.5?
@gracemelegance6623 Жыл бұрын
Watching this I I prepare for my icm exam. Thank you for this so helpful.
@isabelfodge90482 жыл бұрын
So Good!!!! Thank you so much!
@sarahboke1903 Жыл бұрын
Thank you so much for your help
@NoraAlmesaffer-mi8sn Жыл бұрын
Thanks for the big help 😊
@diddytheboerboel2 жыл бұрын
Great job🙏, it was clear and precise!
@Tweetyzainab Жыл бұрын
Thankyou so much it is so helpful .
@ashraelrafael35983 жыл бұрын
do u have a playlist of this? thanks for the answer
@Piinnkbunnii6 ай бұрын
Thanks so much!
@user-bx1vx8yd1q6 ай бұрын
Thank you so much
@markbagwell50515 жыл бұрын
Thanks!
@saeedsanusi72603 жыл бұрын
A wonderful video
@HarryPotter-ci4bp3 жыл бұрын
Thank You!
@mahkhan31573 жыл бұрын
Thankyou so much💕
@mry_elii11 ай бұрын
thank you so much!!!!
@azalor3223 Жыл бұрын
My note is a mess but thank youuuu its worked. God bless you ❤️
@1000Zapatero3 жыл бұрын
Class Boundaries are a silly waste of time if you are not recording fractions of a day.
@user-tg3wb7vt6p4 жыл бұрын
Thank you so much 💗💗
@zabihullah20583 жыл бұрын
Hello cuteee
@detgarchitorena32402 жыл бұрын
Thank you I understand this🥺
@samjacob8153 жыл бұрын
Thank you
@JustinRoy-hv7bt2 ай бұрын
It does help to get away with my quiries ❤
@tukai75543 жыл бұрын
Thank you sir
@hashtagcoding58093 жыл бұрын
Thank You
@REXcia Жыл бұрын
THANK YOU SM
@mutuwabrenda1450 Жыл бұрын
Thanks alot
@onthutemotlhabane5697 Жыл бұрын
Great Content. I have a question though. If you're not given the value for number of classes. how do we calculate that part??
@violetserenityy10 ай бұрын
You always should be gIven that, it’ll either be bin width or some categorical number that tells you how many groups.
@wilsonmarinmontoya43182 жыл бұрын
Gracias.
@seaneletanmpepe69572 жыл бұрын
what is ment by the "previous class" when computing the very first comulative frequency
@3.1415vp10 ай бұрын
Thanks bro
@luminous51883 жыл бұрын
could you do an explanation video for if the no. of classes isnt specified?
@jfrench3 жыл бұрын
The only thing that would change is that you would have to decide on the number of classes yourself. There is no way to construct a grouped frequency distribution without knowing the number of classes. A common rule is to have the number of classes by something close to the square root of n, where n is the sample size.
@anthonyeisenluna84773 жыл бұрын
there is 1 way tho n= 1+3.3log N , where n is the number of classes and N is the number of data you have.
@jfrench3 жыл бұрын
@@anthonyeisenluna8477 Thanks Anthony. Yes, there are multiple approaches for choosing the number of classes based on the number of observations in the sample.
@luminous51883 жыл бұрын
Thank you both! My teacher hadn't explained it so I was confused
@klaviergavin54013 жыл бұрын
You can use Sturges Formula.
@zenithmagandan19584 жыл бұрын
Thank you so much! 👏
@idekh67102 жыл бұрын
thanks
@nmilapo49803 жыл бұрын
Thanks
@argeeonaler19113 жыл бұрын
How you get the frequency?
@IceyCubed2 жыл бұрын
Nice
@nileshjagjivan15314 жыл бұрын
tnx appreciate it...
@maymay65723 жыл бұрын
Our instructor said that the class width should be odd. I'm confused:(
@before1202 жыл бұрын
its easy to instruct with odd and they just may want you to use that but it doesn't have to be.
@spacemonkey77103 жыл бұрын
THANK YOU SO MUCH @!!@!#!#@#! i have some answersheet to answer and thank you so mucjh
@2010smeh2 жыл бұрын
So, what’s the difference between the tally and frequency values then?
@before1202 жыл бұрын
I thought the same thing...in my stats class, we didn't use a "tally," but just the frequency and cum. freq. The "tally" was merely a stepping stone approach to get perspective.
@Ewuramensah80185 жыл бұрын
How did you determine the classes?
@jfrench4 жыл бұрын
The range [max - min] divided by the number of classes (rounded up based on the last decimal place of the observed data). In this case, (93 - 0)/7 = 13.3 -> 14.
@ChrisellaJung3 жыл бұрын
Also, is the class size has to do something with how many rows are in class limits?
@michaelcnyoka59092 жыл бұрын
What if the number of classes isn't specified?
@faithbaptistchurchofbongab54143 жыл бұрын
How about if my range is 5, no. of class is 6... My class width is 1. How can I make a class limit? My values are 0, 1, 2, 3, 4 and 5 with the frequency of (0 has 7)(1 has 7)(2 has 5)(3 has 3)(4 has 2)(5 has 1)
@jfrench3 жыл бұрын
In your case, because you have such small numbers, you probably want your class width to be 5/6 = 0.833 -> 0.9. Then your class limits are 0 to 0.9, 1 to 1.9, etc.
@faithbaptistchurchofbongab54143 жыл бұрын
@@jfrench thank you so much sir...😊
@mubashirkhan9511 Жыл бұрын
🤔 3:00 I didn't understood one thing that why did we round off 13.3 to 14 we would have round it to 13.
@arigyenancy-pr7hx10 ай бұрын
This CONFUSED me too
@ireneee72793 жыл бұрын
What if my class width is 4.01 am I suppose to round it up to 5?
@jfrench3 жыл бұрын
Technically, yes, if your data are integers. Otherwise your classes won't be wide enough to capture all the data.
@1000Zapatero3 жыл бұрын
Round UP to match the decimal resolution of your data. For integers it would be 5. If your data had 1 decimal, it would be 4.1. For 2 decimals 4.01 would be fine.
@jfrench3 жыл бұрын
@@1000Zapatero Excellent point. In this example, the data are integers. But the algorithm changes based on whether the data has decimals.
@zabihullah20583 жыл бұрын
Can't Rule is rule
@maounobunaga54913 жыл бұрын
I still don't get how did that 13.3 become 14 all of a sudden
@FijiVlogs3 жыл бұрын
Hiii As far as I know ..we round "up" the class width...that is round up to the nearest whole number For eg: 2.35 will be 3 4.8 will be 5 29.01 will be 30 I hope that helped❤
@keiferbell69682 жыл бұрын
THE GOAT
@before1202 жыл бұрын
he-he!
@lazyjuice87963 жыл бұрын
How about 1.58? Should it be 1.6 or still 1.58?
@mathewbrigman55923 жыл бұрын
If the numbers you’re working with have 2 decimal places (ex 2.69) then keep it at 1.58, if they have only one (ex 6.9) then round up to 1.6 or if there are no decimal places (ex 420) the round up to 2
@sassyjenniekim970811 ай бұрын
why would you round that up if the next number to that decimel value is below 5?
@lotusbogus10 ай бұрын
You always round up even if decimal is lower than 5 so 4.2 is rounded up to 5 and 6.1 is 7 and so on.
@johnlloydbacquiano27612 жыл бұрын
How did you find the frequency?
@before1202 жыл бұрын
The number of observations according to after you Tally, in this case, 14, is your starting frequency.
@ananthasaayiphakeerathan16152 жыл бұрын
very helpful sir thank you
@jayflorenzdominguez31222 жыл бұрын
can the frequency be 0?
@Nafril89232 жыл бұрын
❤️❤️❤️
@Waftey4 жыл бұрын
Ur better than most math teachers
@mathewbrigman55923 жыл бұрын
It probably helps that we can watch this on our own time and pause it when we need
@rahulthakan68634 жыл бұрын
What to do when no. Of classes aren't specified in the question.
@rronquillo15214 жыл бұрын
Usually pick a class between 5 - 16 i think
@mukuhimuiga98564 жыл бұрын
Use staurges formula
@jfrench3 жыл бұрын
If the number of classes is not given, then a common rule is to use something close to sqrt(n) where n is the number of observations. In this example, we have 33 observations, so n = 33. sqrt(33) is about 5.7. So that rule would suggest using 5 or 6 classes. 7 is a bit larger, but not by much.
@Thematic173 жыл бұрын
where did u get the width?
@Thematic173 жыл бұрын
I mean how did it become 14 if u only get 13.3 u cant round off if its a smaller value right?
@Thematic173 жыл бұрын
ok now I get it after rewatching again its not round off but a round up but my last question is how to know the number of classes? because yours is already given Idk how im going to just specifically give a number of class
@jfrench3 жыл бұрын
@@Thematic17 Good question. Most problems will simply tell you the number of classes to use. If it is not given, then a common rule is to use something close to sqrt(n) where n is the number of observations. In this example, we have 33 observations, so n = 33. sqrt(33) is about 5.7. So that rule would suggest using 5 or 6 classes. 7 is a bit larger, but not by much.
@collinsogalloh8357 Жыл бұрын
I dont understand those your tally and observations...how
@isaacdonkor66434 жыл бұрын
why did you do the tally anyhow 😒
@jfrench4 жыл бұрын
I didn't do all the tallies, I only showed an example of how they are done. The reason you do the tallies is to count the number of values in each bin. You can do that directly, but it's easier to mark a tally in the appropriate bin for an observation, cross out the observation, and then move onto the next observation. You can simply count the number of values in each bin directly, but it's very easy to make a mistake that way.
@Randomhumanbeing004 жыл бұрын
Wow! Thanks for putting it in laymen terms lol
@zabihullah20583 жыл бұрын
Hello Cuteee 🧏🧏🧏 Please kiss me
@mathewbrigman55923 жыл бұрын
@@zabihullah2058 this got weird
@Khizar_Ansari Жыл бұрын
R=48-18=30 m=5 h=30/5=6 If I make 5 classes of height 6 then I do not get the highest value in the last class Limit. Please tell me how to solve this
@JoShuA-gs9np Жыл бұрын
my name is joshua too
@lazyjuice87963 жыл бұрын
How can 2.123 become 2.2? It should be 2.12 right or not?
@chavezjimueljr.64293 жыл бұрын
Because in data distribution table we always round up no matter what number of decimals He mention it in the video