In calculating the variance, we divide the sum of the squared deviations by the number of data points minus 1 (also known as the degrees of freedom). This is known as Bessel's correction. The reason for subtracting 1 is to get a more accurate estimate of the population variance. When we have a small sample size (like in this case, where we only have 4 data points), the sample variance can be a bit biased towards underestimating the true population variance. By subtracting 1 from the sample size, we are essentially adjusting for this bias and getting a more reliable estimate of the variance. This correction is more important when the sample size is small, and it becomes less important as the sample size increases. In this specific case, subtracting 1 from 4 gives us 3, which is the denominator used to calculate the variance. If we didn't subtract 1, the variance would be slightly lower (36/4 = 9), but using the corrected denominator (3) gives us a more accurate estimate of the variance (36/3 = 12).
Mean - Average. Median - Middle Value. Mode - The most repeated value. Range - Highest value - lowest value. Variance - (mean-a)^2+(mean-b)^2+(mean-c)^2+(mean-d)^2+...../n. Standard Deviation - Under root of Variance. Ratio and Proportions - if A:B , B:C then b on both sides show be same for A:C. Zakat Problems - (calculating zakat) Total Amount / 40 (calculating Total Amount) Given Amount x 40. Important Repeated Questions ...
Thank you Sir u r doing great job.. 👍🏻 really appreciated..keep doing it.. ND May Allah give us complete success Ameen jazakallah 🌸✨ best of luck to all of us..🙌🏻👍🏻
Allah swt ap ko bhot sara ajar dy ... you're doing so much hard work for us...❤❤You are seating and making the video with fan off in this hot weather...May Allah bless you❤❤
A:B =1:2 and B:C=3:4 a)A:B. b) 1:2: c) 1:2: 2 B:c. 3:4. 3:3:4 We written 2 and 3 again in empty 🫙 side then (multyply)it this number Ans is A:b:c 3:6:8 Answer of A and C is 3:8
Zakat problems Monthly income of Ali is RS 4000 . What Will be the amount of zakat after 8 months The actual answer is 4000*8=32000 32000 divide by 40=800
sir mjhy median wly m ak question krna tha jo 7-8 class ki book hn un m median find krny ka treka hota h k ap total no. count kro agr wo odd hn to +1 kr k divided by 2 kr do........ n agr even hn to bs divided by 2 kr do like 1,2,6,6,5,3,7...... ans) 7+1/2 = 4 answer aye ga lakin ap kh ry k jo mid m no. hota wo h to fr ksy ??? m do books sy dkha h dono m division wla he h ap plz clarify kr dain
In calculating the variance, we divide the sum of the squared deviations by the number of data points minus 1 (also known as the degrees of freedom). This is known as Bessel's correction.
The reason for subtracting 1 is to get a more accurate estimate of the population variance. When we have a small sample size (like in this case, where we only have 4 data points), the sample variance can be a bit biased towards underestimating the true population variance.
By subtracting 1 from the sample size, we are essentially adjusting for this bias and getting a more reliable estimate of the variance. This correction is more important when the sample size is small, and it becomes less important as the sample size increases.
In this specific case, subtracting 1 from 4 gives us 3, which is the denominator used to calculate the variance. If we didn't subtract 1, the variance would be slightly lower (36/4 = 9), but using the corrected denominator (3) gives us a more accurate estimate of the variance (36/3 = 12).
Mean - Average.
Median - Middle Value.
Mode - The most repeated value.
Range - Highest value - lowest value.
Variance - (mean-a)^2+(mean-b)^2+(mean-c)^2+(mean-d)^2+...../n.
Standard Deviation - Under root of Variance.
Ratio and Proportions - if A:B , B:C then b on both sides show be same for A:C.
Zakat Problems - (calculating zakat) Total Amount / 40 (calculating Total Amount) Given Amount x 40.
Important Repeated Questions ...
Nice summary ❤ thanks
@@NOTurAYAN np
Thank you Sir u r doing great job.. 👍🏻 really appreciated..keep doing it..
ND May Allah give us complete success Ameen jazakallah 🌸✨ best of luck to all of us..🙌🏻👍🏻
Hard working UA-camr MashaAllah
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You are working very hard for us❤
I have no words to thank you 😊
THANKS SIR G😎😎😎
Congratulations sirr MashaAllah u deserve many more🥰
Allah pak apko bohat sara ajar ata farmaye...ameen❤😊
Thankyou so much mai comsats ki tyari ap ki videos dekh ky e kr rai hun.....Allah kry mera udr ho jy
ameen dont forget to watch my latest one shot lecture on basic maths as it will come in test
Ibad bhai ap jese log aj kal boht km milte hain
you are great❤😊
JazakAllah
Bhai Apki videos meri fvrt hain U R soo hardworking
eagerly waiting for part 2 of quantative
zakat question :
Monthly income of Ali x 8 /40 = 4000 x 8 = 32000 /4 = 800 ans
Answer is D None Beacuse Zakat pay Yearly means after one year not 8th month...!
Allah swt ap ko bhot sara ajar dy ... you're doing so much hard work for us...❤❤You are seating and making the video with fan off in this hot weather...May Allah bless you❤❤
Ameen
Thanks for helping
No problem
17:30 Zakat Problem in 8 months ))) none because 8 months pe zakat hoti hi nahi wo anually hoti hai
Yes
Means is ka answer none hai
@@Duckybeen hmm
thankewww so much and jazakaaalah !u r great
To good video on point
Thank you so much ibad bhai
you have done an amazing work
JazakAllah
Thank you sooooo much ibad sir we are so lucky because you are the solution of our every problem god bless you more and more ❤
It's my pleasure
Ap ne dil khush kar diya thank u 😊❤ keep it Up
JazakAllah
Ma Sha Allah nice❤
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Bhai u r doing sooooo amazing plus ap jo questions khud solv krny ko dety hn un k answers end mn bta dya krn ta k confirm ho jaya kry
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bro seriously watching this video one day before nts exam .... alotss of wishes .
Thank you ibad bhaii your videos is very informative for us ibad bhai quantitative or analytical portion pr kuch or videos bana dae kindly
Today at 8 pm
Nice😊
Thanku sir ...Iss Ka 2nd part BHI banayein
Sure
Ibad bhai kia baat haee Allah ap khush rakhy
Acha Ibad bhai yhe mode waly questions mae sequence zaroori nai hoti mean jo phly repeat hu ga wo phly likyy gy
Ameen
Yes
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excellent brother
Assalamualaikum Brother 1 vedio for computer and English separately please ❤❤❤❤
10:47 ans :4
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14:44 ans:6/5
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Ans: 9 10:20
make a video on verbal reasoning , subject portion and analytical reasoning
The answer is 800 bcuz first find the zakat of one month than answer is multiply with 8
zakat applies after one year so will the answer none?
@@hiddenstar437 1200
1200
@@FOUZIANAHEED-vu9tu for 8 months there will be no zakat
thanks bro
ap diamond button deserve karty 💖💖
A:B =1:2 and B:C=3:4
a)A:B. b) 1:2: c) 1:2: 2
B:c. 3:4. 3:3:4
We written 2 and 3 again in empty 🫙 side then (multyply)it this number
Ans is
A:b:c
3:6:8
Answer of A and C is 3:8
Very good
100squre minus 99squre
Use( a+b)(a-b)=a2 -b2
One every type Qs not only for consecutive
Yes
Thanks bro❤
Variance
-2,-2,2,2
Average =-2-2+2+2/4= 0
Varience 4+4+4+4/4= 4
Thanku sm🎀
❤❤❤❤❤❤❤ hamesha khush raho❤❤❤❤❤❤❤❤🎉🎉🎉🎉
the answer of the question ratio and proportion is 6:5?
How
Zakat wala mcqs ka option none ay ga because zakat year ki savings par hoti ha montly income par nhi
Yes great
Sir nat KY subject mcq ky bary ma guide kr dein plz
The monthly income of Ali is 4000. If i multiply 4000x8 we got 32000, then 32000 / 40 = 800.
monthly income of Ali multiply by 8 then divided by 40=800.
It will be zero logically
@@ibadullahyt yesssssssssssss
Thanks sir mera nts ka test hai sunday ko your videos help me a lot❤❤❤
Bhai ap ka kis ka test haee
Nat nts pindi@@DaniyalHaider-hg2fu
Mae tu abhi nts ki wesy tiaari kar raha hu bhai
@@DaniyalHaider-hg2fumera sunday ko test hai pindi mn❤❤mn bhi tiari kr raha hoon
@@NiaziSaab-l3h bhai ap ka kis cheese ka test haee plz yhe bata doo
None of these 17:31 because the zakat is annual
Yup
waiting part 2 eagerly
Nice bro
10:52 Answer is 4
variance mein divide by total terms minus 1 bhi to krna hota hy
Sir jo nat 6 tha wo thora mushkil tha us tarah k Qs krwa den pls
100² - 99² = (100-99)(100+99) = 199🎉
Assalam O Alikum bhai. Please can you tell how to prepare subjective part
20:24 ibadah Bhai ik galti hai Yahan par it's 388 not 338 ❤
Ali one month income = 4000
8 month income = 32000
Zakat = 32000÷40
Zakat= 800
Its answer is 0 because zakat doesnot apply before one year
If the answer is solved it will be 800
But there is a logic too zakat is applied after 12 months
Subjects portion pe bhi aik bnaadete to mazaa aajaye😊
Okay
Sir ap kindly comsat kh Joh test a rha ha 12 July ko ap kindly is ke tyari KRwa din
Ibad bhai plz pieas ki preparation ka liys koi video upload krdein time bht kam hai
variance ka formula ghalat bataya ha we divide the squares by n-1 terms
BRO ORR VEDIOS BANAOO NTS PERAPERATION PER 🙂🙂🙂
Range 82-1= 81
Computer Physics analytic
variance method me mistake hy end pe divide total terms minus 1 sy karna hy
Bro explain
Air ka test ki Preparation ki videos bhi dein
Ok sur e
Sir pls make a vid on eng analogy.
I've a test on sun. Pls don't delay.
zakat applies after one year so will the answer none?
Zakat problems
Monthly income of Ali is RS 4000 . What Will be the amount of zakat after 8 months
The actual answer is 4000*8=32000
32000 divide by 40=800
Zakat tab ada ki jati hai jab 1 sal guzar. Mtlb 8 months ma us par koi zakat nahi hoga.option d none
Yes good
total amount of ali salary after 8 month will be 32000 then zakat implies on it will be 800
None ans h bsc zakat after one year h apply hota he
None
16 is the correct answer of variance
How?
Variance k lia average nikalni h aur terms ko add kr k zero ara h _2_2+2+2=0 and then divided by 4 which definitely equal to zero... 🥴🥴
Can u please guide me..
ibad bhai nat 6 mushkil aya tha , ous type ky questions pr bhi video banaye ga
BHAI AUR BHI SHOT VEDIOS BANA DAIN PLS PLS
IA today at 8pm
Iske alawa basic maths dekhna hai ya is sy questions ayengay
👍
Jinho ne 30 june wala comsats ka nat nahi dia wo baki 2 me apply kr sakte hain???
Yes
Ratiovproportional nhi aya samj ya bisma maria kiran??! Ya bta dein
Bhai ase he bilkul analytical ka bhe lec bna dein
Sure inshaAllah
variance ka answer 16 hai
varaince answer 4
Sir kindly ap Comsat ke test ke tyari KRwa deinge Joh 12 July ko a rha ha Lahore ma kindly plzz
Yeh saari cheezein uss test ke loye imp hay
Thank you sir
Part b please🥰
Today at 8 pm
What is answer of this question if the ratio of maria to bisma age is 4:5 and ratio of bisma to kiran age is 3:2.Find the ratio of maria to kiran.
6:5
Sir august mai jo NAT hone Wala hai uspy kab videos aye gee?
Sir ratio of maria to kiran not understand.i taken a answr of 6:5 is it correct
sir mjhy median wly m ak question krna tha jo 7-8 class ki book hn un m median find krny ka treka hota h k ap total no. count kro agr wo odd hn to +1 kr k divided by 2 kr do........ n agr even hn to bs divided by 2 kr do like 1,2,6,6,5,3,7...... ans) 7+1/2 = 4 answer aye ga lakin ap kh ry k jo mid m no. hota wo h to fr ksy ??? m do books sy dkha h dono m division wla he h ap plz clarify kr dain
Med m divide mode m middle term answer hota
@@AnasAli-or9zd ok
Salam ! I want a clearification k quantitative portion is also for the pre medical students ... matlab maths ki prepration b karni pary gi ? 😢
W salam yes
@@ibadullahyt shukria
17:30 pr kiya ans g
Ibad Bhai samj nhi aa rhi Subjective Maths kahan se prepare kron
Bohat confusion hai Kis terh k questions aate hain Subjective maths mai