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205,754
help-1
2b68639dcc3f4104b951355668550f6a
734,794,827,077,648,600
yes sam
01/30/2022 00:39:29
You didn't say if the doubt was cleared or somerhing
1
0
null
null
null
null
null
205,754
help-1
2b68639dcc3f4104b951355668550f6a
739,644,907,677,024,300
n/c
01/30/2022 00:39:34
I think you got it, the Hermitian symmetry doesn't hold
0
1
null
null
null
null
null
205,754
help-1
2b68639dcc3f4104b951355668550f6a
739,644,907,677,024,300
n/c
01/30/2022 00:39:35
So thanks
0
1
null
null
null
null
null
205,754
help-1
2b68639dcc3f4104b951355668550f6a
467,435,887,236,612,100
Edd
01/30/2022 00:48:03
.close
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
150,414,892,225,134,600
RokettoJanpu
01/30/2022 00:48:08
thanks
1
0
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:00:34
i have a question
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:02:38
we got a data
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:03:00
https://cdn.discordapp.c…924/IMG_6997.jpg
IMG_6997.jpg
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:03:36
That’s the original data and it asks for the arithmetic mean
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
261,933,205,387,477,000
riemann
01/30/2022 01:05:04
use the definition?
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:06:24
for convenience, i have to make those number much smaller
0
1
456,226,577,798,135,800
Deleted User
0000
Deleted User
false
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:07:08
https://cdn.discordapp.c…416/IMG_6998.jpg
IMG_6998.jpg
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:07:22
so the upper case S and N
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:07:27
stands for score and number
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:07:48
and thats the new data after the adjustment
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:08:37
and i found the arithmetic mean is 69
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:08:59
which is inconsistent to the correct answer
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:09:06
the correct arithmetic mean should be 71
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:09:15
but i can't seems to find out where i did wrong
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
261,933,205,387,477,000
riemann
01/30/2022 01:12:30
I don't even follow your work
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:14:15
well, i have just learned that i can translate a data into a smaller one then its will be much easier to find the arimetic mean or IQR and shits like those things
0
1
456,226,577,798,135,800
Deleted User
0000
Deleted User
false
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:15:16
i have applied the trick right there, so x is the original value
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:15:31
I believe you have done some mistake in your calculations. The mean **is** 71
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:15:50
but i have double-checked it
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:16:13
first i minus the original data by 65, then i divide it by 10
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:16:52
Why specifically 65? Sorry but I don't really know about this method which you are using.
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:17:06
emmm
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:18:28
i dont know how to explain it, but its like Y=ax+b
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:18:53
Y is the value after the translation, X is the original
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:19:14
Oh
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:19:41
b is 65 and a is 1/10 in my case
0
1
456,226,577,798,135,800
Deleted User
0000
Deleted User
false
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:19:59
I see
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:22:38
Can you please elaborate more on this... Because i believe we can also solve this in a more easier manner
0
1
456,226,577,798,135,800
Deleted User
0000
Deleted User
false
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:23:14
do you mean without the translation
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:23:22
Yep
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:23:49
If you look closely, this is a grouped data
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:24:33
What will you do to proceed then
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:24:59
get the medians and add them up
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:25:06
Correct
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:25:10
But no
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:25:16
but didnt the translation make those data more easier to calculate
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:25:24
Don't add them yet
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:25:33
ohhh
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:25:52
As i said I don't know much about this trick
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:26:27
You have your midpoints of each classes right
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:26:38
yes
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:27:11
let me draw it on the paper
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:28:28
https://cdn.discordapp.c…820/IMG_6999.jpg
IMG_6999.jpg
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:28:58
okay after the calculation youll get the arithmetic mean
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:29:25
but then it requires the Standard Deviation of the data
0
1
748,029,603,087,384,700
Yours truly
3785
What the hell am I doing here?
false
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:30:10
i think you have to do the trick right there in order to make the calculation more easier
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:34:04
fk let me rearrange my question
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:35:01
Subtract every midpoint by some number you like
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:35:05
Oh my god this internet
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:35:18
Sorry for my absence
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:35:32
For example, i subtracted every midpoint by 25
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:35:44
To get 0,10,20,....70
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:35:54
Now what will you do next
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:36:04
yes but i subtracted those by 65 instead
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:36:17
Fair
0
1
684,674,576,998,858,800
kloser
6194
the crying name changer
false
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:36:26
But i did with 25 to avoid the negatives
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:36:31
It's ur wish
0
1
684,674,576,998,858,800
kloser
6194
the crying name changer
false
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:36:44
@PB
0
1
361,866,880,291,438,600
UNIVERSE
5877
UNIVERSE
false
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:37:00
but its still hard to calculate
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:37:24
you have to go further, like divide those by a number
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:37:33
No need for that
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:38:28
Just multiply every respective number you got with its respective frequency, since that is appearing _n times_, that is, it's frequency in the given data.
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:39:00
And then sum each result up
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:39:32
You divided by 10, that's fine
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:41:14
In the end when you're finding the mean by adding all the results up, and dividing it by the cumulative frequency, don't forget to multiply by 10 (the final answer), and then add 65 (the number which you subtracted with)
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:41:32
You get 71 as your answer
0
1
361,866,880,291,438,600
UNIVERSE
5877
UNIVERSE
false
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:42:47
And if you're not dividing by 10, and then finding the mean, that's also okay. Just add the number with which you subtracted with in the end
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:43:42
yes ure right
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:43:58
there sth wrong in the calculation but i didnt notice it
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:44:04
Yes
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:45:22
https://cdn.discordapp.c…784/IMG_7001.jpg
IMG_7001.jpg
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:45:24
its 71
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:45:32
thank you so much
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:45:33
Yes 👍
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
755,831,671,588,126,700
RepliedPencil
01/30/2022 01:45:36
Yw
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:45:57
i think the question is solved, thank you pencil
0
1
null
null
null
null
null
205,755
help-1
35a735ed70cd4412a0024d17ef533d3b
708,594,064,060,055,600
PB
01/30/2022 01:46:01
.close
0
1
null
null
null
null
null
205,756
help-1
88d4e76b393243f49f3fd3bdf22998fa
504,017,189,351,718,900
nullptr
01/30/2022 02:00:08
what sort of equation of a line is this? how's it called?
https://cdn.discordapp.c…20130_085756.jpg
Screenshot_20220130_085756.jpg
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205,756
help-1
88d4e76b393243f49f3fd3bdf22998fa
331,558,346,333,224,960
jan Niku
01/30/2022 02:01:38
:thonk:
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205,756
help-1
88d4e76b393243f49f3fd3bdf22998fa
331,558,346,333,224,960
jan Niku
01/30/2022 02:01:54
so is slope m = q/p?
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205,756
help-1
88d4e76b393243f49f3fd3bdf22998fa
331,558,346,333,224,960
jan Niku
01/30/2022 02:02:03
seems like a weird way to write it
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205,756
help-1
88d4e76b393243f49f3fd3bdf22998fa
331,558,346,333,224,960
jan Niku
01/30/2022 02:02:06
its almost point slope though
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help-1
88d4e76b393243f49f3fd3bdf22998fa
504,017,189,351,718,900
nullptr
01/30/2022 02:02:27
not sure what are the p and q, it's not mentioned
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205,756
help-1
88d4e76b393243f49f3fd3bdf22998fa
504,017,189,351,718,900
nullptr
01/30/2022 02:02:41
it's a bit weird, that's why I'm asking
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205,756
help-1
88d4e76b393243f49f3fd3bdf22998fa
331,558,346,333,224,960
jan Niku
01/30/2022 02:02:55
idk it probably has a name
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help-1
88d4e76b393243f49f3fd3bdf22998fa
331,558,346,333,224,960
jan Niku
01/30/2022 02:03:05
but it looks like a split up point slope to me
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help-1
a9a972e1c16d4d40b4a442e029c99b2e
522,317,642,309,173,250
Micos
01/30/2022 02:41:05
hi
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help-1
a9a972e1c16d4d40b4a442e029c99b2e
522,317,642,309,173,250
Micos
01/30/2022 02:41:07
so
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help-1
a9a972e1c16d4d40b4a442e029c99b2e
522,317,642,309,173,250
Micos
01/30/2022 02:41:50
I have a parabola, that is set by equation: y=ax^2+bx+c
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help-1
a9a972e1c16d4d40b4a442e029c99b2e
522,317,642,309,173,250
Micos
01/30/2022 02:41:54
But idk a,b,c
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help-1
a9a972e1c16d4d40b4a442e029c99b2e
522,317,642,309,173,250
Micos
01/30/2022 02:41:59
how to find them
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help-1
a9a972e1c16d4d40b4a442e029c99b2e
522,317,642,309,173,250
Micos
01/30/2022 02:42:05
like c is obv
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help-1
a9a972e1c16d4d40b4a442e029c99b2e
522,317,642,309,173,250
Micos
01/30/2022 02:42:09
but what about a and b
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help-1
a9a972e1c16d4d40b4a442e029c99b2e
350,796,385,525,825,540
ndam500
01/30/2022 02:43:19
Can you post your homework?
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help-1
a9a972e1c16d4d40b4a442e029c99b2e
350,796,385,525,825,540
ndam500
01/30/2022 02:45:06
@Micos
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373,884,980,977,336,300
Remavas
3737
Remavas
false