OMG!!! I don't take stats until my spring semester and God-willing, I will be very prepared for the class that everyone hates. I'm loving learning it so far. As usual, you are the best.
Thanks man! I think your videos are awesome. I am working through a Statistics class online and in the first week we've had a million equations thrown at us. Your videos are easy to follow, and your explanations are great.
Am i the only one who saw it to be related to centre of mass? At first i felt m.x should be a special named quantity,bcz well lets say two pt masses m1 and m2 move towards each other by distances d1 and d2. Then, if m1d1>m2d2: The com will shift in the direction m1 moves If m2d2>m1d1: The com will shift in the direction m2 moves If m1d1=m2d2: The com will not shift at all despite both the bodies moving So m times x holds a deep significance indeed, and should have been a special physical quantity with a special name, but there is no physical quantity with dimension M1L1T0 Then my thoughts shifted to weighted mean. Bingo. Com is the weighted mean of masses over distance. I guess this is the origin of the term "weighted" mean.
Gentlemen what can I help you Just post it I will do so if it’s on my hand …. You deserve the most respect things in this world and in hereafter. Thankful Of Eritrea 🇪🇷
At 2:50 when you calculate the weighed mean, isn't this exactly the same thing as the normal average you just calculated? I don't see the difference between these two formulas? I think in essence they tell you exactly the same thing every time? So why do you show this as if it's a coincidende that these two formulas result in the same outcome here? They were always going to be the same, no matter what example or data-set you were going to use. Please correct me if I'm wrong here.
For problem #4 the average for John was 83.2 and I looked this video up cause I was having trouble figuring it out and when I do my problem the results are 83.2😂 what a coincidence
How he get the 83.2, please recheck your calculation. cause i got the same problem too (i used my phone by the way). 0.15(92) + 0.10(74) + 0.20(83) + 0.25(76) + 0.30(88) = 83.2 Thank you
How he get the 83.2, please recheck your calculation. cause i got the same problem too (i used my phone by the way). 0.15(92) + 0.10(74) + 0.20(83) + 0.25(76) + 0.30(88) = 83.2 Thank you
A random sample of 10 packets was taken and found to have a mean weight of 40 grams and a standard deviation of 9 grams. What is the mean weight of the population
arithmetic mean is the average for a sample /population. weighted mean is the mean of a data set where each value does not hold the same relative importance ( or weight)
no weighted mean is associated to some sort of frequency or percentage, so directly adding them up and dividing by the total wont give you the correct answer. you have to multiply all the weighted percents/frequency with the values given then divide by the sum of the weighted percents/frequency.
by this time you may have understood but, it is because that's the weight (w) and X are the numbers we have to multiply with to get their WEIGHTED mean wx+wx+wx "the points" or X will be of no importance we don't multiply them with the weights, or hours; calculating the weighted mean hope that makes sense.
In problem three there is an error. The problem is the average weight of the students at a college. Then the problem ends for the weight of a high school.
Statistics Formula Sheet: bit.ly/47zjTVT
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This has been the only video to have this material actually make sense to me.
*This man needs to be protected at all cost!* he literally helped me through my highschool
OMG!!! I don't take stats until my spring semester and God-willing, I will be very prepared for the class that everyone hates. I'm loving learning it so far. As usual, you are the best.
#❤
Ldleld
Thanks man! I think your videos are awesome. I am working through a Statistics class online and in the first week we've had a million equations thrown at us. Your videos are easy to follow, and your explanations are great.
saaaammmeeeeee
Same, in my summer semester 😭😭😭
37 yo taking GREs in a few weeks. It been a while since I finished college. Thanks for the help.
I’m right behind you. I’m 33, that aspect.
This is useful and enjoyable quite honestly
Why couldn't we have prof like this?
I NEED THIS FOR MY RESEARCH OUR TEACHERS DIDN'T TEACH THIS NOR HOW TO DO A RESEARCH SO NOW I'M ASKING FOR THIS VIDEO TO TEACH ME
Guys it's 1 am and Tomorrow is my statistics exam please wish me luck :(
thanks alot that helped i have a midterm tmw
Thanks for your explanation
wonderful, way better than what my lecturer was teaching yesterday
Thanks!
Thank you for this wonderful explanation.
This video was really helpful. Thanks
Hi r u from India
You’re awesome man ! God bless you
Who invented the weighted mean? I need it for my citation. Great help, brother!
Michael Gabriel joe
@Justin batchelar Momma Joeja
@Justin batchelar , Ha Ha
@Justin batchelar ohh yeah bro, I got all day. Ha Ha Haaaa Haaaaa!
Jose Rizal
Am i the only one who saw it to be related to centre of mass?
At first i felt m.x should be a special named quantity,bcz well lets say two pt masses m1 and m2 move towards each other by distances d1 and d2.
Then, if m1d1>m2d2:
The com will shift in the direction m1 moves
If m2d2>m1d1:
The com will shift in the direction m2 moves
If m1d1=m2d2:
The com will not shift at all despite both the bodies moving
So m times x holds a deep significance indeed, and should have been a special physical quantity with a special name, but there is no physical quantity with dimension M1L1T0
Then my thoughts shifted to weighted mean.
Bingo.
Com is the weighted mean of masses over distance.
I guess this is the origin of the term "weighted" mean.
Leave a little out on each problem
online school be wack this made more sense thanks
the best explanation
Hello incase you need help in online classes,assignments and tasks ,I'm here to help you out.
Thank you 🎉
You deserve a new subscriber for helping other
man thanks so much, this vid really helped me out
Thank you.
Thank You SIR 😊
I fell in love with your voice, omg ❤
thank you!
Care to explain more about that concentration problem?
Yea, didn't really understand how the 15 gallon was connected to predict whether the resulting concentration would be closer to a certain percentage.
forget statistic and use your common sense.
You could check this video by Professor Leonard:
"Mixture Word Problems (TTP Video 15)"
th-cam.com/video/5KyslL27owA/w-d-xo.html
@@Peter_1986 really helpful thank you
Thank you.......
Thank you ❤️
Gentlemen what can I help you
Just post it I will do so if it’s on my hand ….
You deserve the most respect things in this world and in hereafter.
Thankful
Of Eritrea 🇪🇷
please make a futher more video on chemistry too
Stats exam here I come😭
😭😢😭😭😭😭😭
At 2:50 when you calculate the weighed mean, isn't this exactly the same thing as the normal average you just calculated?
I don't see the difference between these two formulas? I think in essence they tell you exactly the same thing every time?
So why do you show this as if it's a coincidende that these two formulas result in the same outcome here? They were always going to be the same, no matter what example or data-set you were going to use.
Please correct me if I'm wrong here.
Helpful
Thank you so much ❤️
Hi sir what method of statistics should we use to get the GWA if the grades are not given thank u
YOU DA BEST.
For problem #4 the average for John was 83.2 and I looked this video up cause I was having trouble figuring it out and when I do my problem the results are 83.2😂 what a coincidence
How he get the 83.2, please recheck your calculation. cause i got the same problem too (i used my phone by the way).
0.15(92) + 0.10(74) + 0.20(83) + 0.25(76) + 0.30(88) = 83.2
Thank you
I didn't understand how to get the last part, the percentages
i loveeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee ur channel
How do you calculate or see the weight?
In the weighted mean how to calculate nth root and log?
9:12
Thanks
Thank you 🌞🌞🌞🌞🌞
How he get the 83.2, please recheck your calculation. cause i got the same problem too (i used my phone by the way).
0.15(92) + 0.10(74) + 0.20(83) + 0.25(76) + 0.30(88) = 83.2
Thank you
I love you♥️♥️♥️♥️♥️♥️
How can one easily identify the difference between the weight and the the 'X' value in finding average mean in a question?
Well, as he said, the weight will nearly always be in the form of a percentage or frequency, so the “x” will just be the other value.
@@lordexplosionmurder1760 thanks
A random sample of 10 packets was taken and found to have a mean weight of 40 grams and a standard deviation of 9 grams. What is the mean weight of the population
life saver
I was late during the discussion of this topic, now I need to self study 🤧
What is the difference between arithmetic mean and weighted mean?
arithmetic mean is the average for a sample /population. weighted mean is the mean of a data set where each value does not hold the same relative importance ( or weight)
Is it just me or does question 5 have a problem
Yes, GPA question
what is the ans of question b?
ooh wow
I thought the mean was different than the weighted mean, why is the answer in the same problem 17 for both 😭 pls help
nice video
thank uuuuu
my question is the dots in between w1,w2...wn should be how many otherwise i have realy enjoyed your class thanks
Hi, I have few doubts. Can we connect over email? Thanks.
A level or gcse
Isn't the weighted mean equal to the mean?
no weighted mean is associated to some sort of frequency or percentage, so directly adding them up and dividing by the total wont give you the correct answer. you have to multiply all the weighted percents/frequency with the values given then divide by the sum of the weighted percents/frequency.
Why he put the hours is W ? in 14:47
by this time you may have understood but,
it is because
that's the weight (w) and X are the numbers we have to multiply with to get their WEIGHTED mean
wx+wx+wx
"the points" or X will be of no importance we don't multiply them with the weights, or hours; calculating the weighted mean hope that makes sense.
Who else thinks he sounds like Mark Wahlberg?
a little
Weighted mean weighted average
Please fractions word problem.
Arefi new gn be amharic behon
In problem three there is an error. The problem is the average weight of the students at a college. Then the problem ends for the weight of a high school.
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❤❤❤
🏆
omg his 2's look like 1's. i was soooo confused!
loooooll XDDD what just happend
whtttt? tell me?
This takes forever. Shorter video would have been much better.
Bewitching Marquee elitist bud refrain weighted mean stathmikos mesos
the question or the given problem is small that why i put dislike improve the problem then i will put like
First
And second
third
👏👏𝒗𝒆𝒓𝒚 𝒏𝒊𝒄𝒆
Thanks so much 👍
Thank you very much !