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Math gurus...Is it possible to find the missing variable... Lanfear Send a noteboard - 21/11/2012 05:12:24 PM
Hi all,

My question is how many standard deviations is Lanfear above the mean? Is she 4, 5, 6, or some other number? According to Wikipedia, http://en.wikipedia.org/wiki/Standard_deviation, (see the chart in the middle of the page) we get the following probabilities:

4 SD = 99.993 666% or in other words, 1 / 15,787

5 SD = 99.999 942 6697% or in other words, 1 / 1,744,278

6 SD = 99.999 999 8027% or in other words, 1 / 506,797,346

Now, if you like round numbers then you might want to use the following (also taken from the same chart on Wikipedia):

1 out of 100,000 = 4.417 173 SD from the mean

1 out of 1,000,000 = 4.891 638 SD from the mean

1 out of 10,000,000 = 5.326 724 SD from the mean.

I don't know if it is possible for us to come to a consensus on where Lanfear is, that is, how many standard deviations is she above the mean. But if we know her level, by extrapolation we can also assign Morgase the exact opposite SD below the mean. Then we can assign Daigian and that should allow us to fill in everybody else.

Any insights are appreciated.

Thanks


Some of you (Tor and Shannow) appear to be math gurus. I don't understand how to calculate a missing variable.

I do know, however, that in math if you have one unknown variable then you can solve the equation and find the answer. So please help me with the following calculation and tell me if it is possible to find the answer. I believe that in order for the math equation to work we have to make a few basic assumptions (and I understand that some of you may disagree with those assumptions). Please humor me for a minute and just help me see if it is possible to find an answer using the assumptions I put forth below.

Please take the following facts as true (for the purpose of the calculation): WoT world is like our own. Thus, 7 billion people. 3% can channel. Therefore, 210 million channelers. Half are men, half are women. Therefore, at any given time there are roughly 105 million women channelers.

Assumption: Morgase is the weakest channeler possible. Since she is 1 out of 105 million that makes her 5.730 729 SD below the mean. See the standard deviation chart on wikipedia that I linked to in the original post.

Assumption: The bell curve is symmetrical and not skewed in one direction or the other. I know some of you disagree (but please humor me for a minute).

Since I don't like strengths less than 0 what I want to do is assign Morgase a strength equal to 1 unit of power. If I assign Morgase 1 unit of power do I have enough information to figure out the mean? In other words if 1 unit of power is equivalent to 5.730 729 SD below the mean can't I figure out the mean? If so, what is the mean?

If it is impossible to figure out the mean using Morgase equal to 1 unit of power and Morgase equal to 5.730 729 SD below the mean, then what other variables need to be known in the math equation?

Thanks for your help.
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How many standard deviations is Lanfear Lanfear - 15/11/2012 06:04:39 PM 2324 Views
Well... vandevere - 15/11/2012 07:02:45 PM 1332 Views
Hmm... Sidious - 15/11/2012 07:25:34 PM 1458 Views
see we CAN agree on stuff darius_sedai - 15/11/2012 07:56:12 PM 1296 Views
Sidious - 18/11/2012 08:37:22 PM 1161 Views
We've always been close with everything except the scale darius_sedai - 18/11/2012 10:29:07 PM 1204 Views
Re: DomA - 18/11/2012 11:07:17 PM 1381 Views
Re: Sidious - 19/11/2012 05:16:00 AM 1212 Views
Re: DomA - 19/11/2012 03:13:01 PM 1202 Views
They only reject 37.5%, not 62.5% Shannow - 19/11/2012 03:19:19 PM 1221 Views
Re: They only reject 37.5%, not 62.5% DomA - 19/11/2012 04:01:43 PM 1424 Views
Re: They only reject 37.5%, not 62.5% darius_sedai - 19/11/2012 09:04:04 PM 1177 Views
Hmmm... fionwe1987 - 20/11/2012 02:08:40 AM 1256 Views
Perhaps, but Egwene is also being a bit dramatic in the scene as she managed darius_sedai - 20/11/2012 04:28:57 AM 1211 Views
Nope... fionwe1987 - 20/11/2012 03:13:13 PM 1268 Views
I believe she is being over dramatic darius_sedai - 20/11/2012 03:26:24 PM 1147 Views
Keep believing that... fionwe1987 - 20/11/2012 03:30:14 PM 1293 Views
*shrugs* darius_sedai - 20/11/2012 03:49:10 PM 1247 Views
Tired and forkroot are the same now? fionwe1987 - 20/11/2012 03:55:22 PM 1135 Views
No it's the literary device darius_sedai - 20/11/2012 04:04:28 PM 1271 Views
This is getting ridiculous... fionwe1987 - 20/11/2012 04:43:13 PM 1139 Views
You are missing my point completely darius_sedai - 20/11/2012 04:50:46 PM 1100 Views
Impossible. Daigian is exactly 0.32SD below the mean Shannow - 19/11/2012 11:06:04 AM 1202 Views
You keep saying that, but it is either a linear or a non-linear distribution darius_sedai - 19/11/2012 09:09:32 PM 1266 Views
That's the whole point. Thanks for finally seeing it. Shannow - 19/11/2012 09:43:27 PM 1217 Views
keep believing that ... but you making up numbers isn't really relevant *NM* darius_sedai - 20/11/2012 04:29:44 AM 783 Views
Please show me a number that is made up. The 0.32SD for Daigian is a rule of statistics. Shannow - 20/11/2012 07:15:48 AM 1166 Views
Go read Fionwe's post about it *NM* darius_sedai - 20/11/2012 02:33:19 PM 785 Views
Is that before or after she started juicing? Praziquantel - 15/11/2012 11:04:14 PM 1195 Views
Wouldn't it be 1 in 105 million? Lanfear - 21/11/2012 04:56:19 PM 1060 Views
Are you sure that it is a normal distribution? Dreadlord - 16/11/2012 04:21:02 PM 1264 Views
Ugh. I hate power level discussions. For real world applications, it should be kind of meaningless beetnemesis - 16/11/2012 10:28:49 PM 1154 Views
I don't really agree Sidious - 18/11/2012 08:40:53 PM 1127 Views
Perhaps, but we've seen that a MUCH weaker Channeler can win in a duel darius_sedai - 19/11/2012 09:13:48 PM 1170 Views
Re: Perhaps, but we've seen that a MUCH weaker Channeler can win in a duel Sidious - 20/11/2012 08:10:01 AM 1148 Views
probably ... Lanfear/Cyndane is clearly remarkably skilled darius_sedai - 20/11/2012 02:35:09 PM 1191 Views
Since I've proven that it's not a normal distribution in units of absolute strength, SDs don't apply Shannow - 17/11/2012 07:48:21 PM 1203 Views
You have proven nothing, except that you have an opinion *NM* darius_sedai - 18/11/2012 02:21:35 AM 761 Views
You simply don't get it. It is mathematically a fact. There is no opinion involved. Shannow - 18/11/2012 02:19:40 PM 1039 Views
Only because you've assigned numeric values. That you created. darius_sedai - 18/11/2012 02:40:51 PM 1168 Views
It doesn't matter what figure you use... Shannow - 18/11/2012 03:01:56 PM 1058 Views
What if Daigian is one third Lanfear's strength? fionwe1987 - 18/11/2012 04:37:58 PM 1210 Views
We have a limit for Daigian's strength, as you well know. Shannow - 18/11/2012 05:41:49 PM 1178 Views
Are you kidding me? fionwe1987 - 18/11/2012 09:07:38 PM 1304 Views
Sure you can darius_sedai - 18/11/2012 10:09:31 PM 1200 Views
Re: Sure you can DomA - 18/11/2012 10:54:50 PM 1192 Views
You're right, though its 37.5% fionwe1987 - 19/11/2012 12:21:29 AM 1147 Views
Oops, typo! darius_sedai - 19/11/2012 02:54:25 AM 1183 Views
Again, not possible, due to Daigian being just 0.3SD below the Mean Shannow - 19/11/2012 08:37:01 AM 1134 Views
Egwene is definitely not 2x Amys... fionwe1987 - 19/11/2012 04:05:12 PM 1065 Views
Re: Egwene is definitely not 2x Amys... Sidious - 19/11/2012 05:55:02 PM 1016 Views
Egwene is about as strong as Melaine and Amys combined darius_sedai - 19/11/2012 09:19:50 PM 1139 Views
Re: Egwene is about as strong as Melaine and Amys combined fionwe1987 - 20/11/2012 02:11:26 AM 1216 Views
Forkroot in every case darius_sedai - 20/11/2012 04:32:26 AM 1136 Views
No! fionwe1987 - 20/11/2012 03:15:16 PM 1127 Views
I'm not going to go re-read the books to you on this darius_sedai - 20/11/2012 03:39:46 PM 1153 Views
You need to read it for yourself, since you're completely confused. fionwe1987 - 20/11/2012 03:54:26 PM 1126 Views
Not going to argue this with you. darius_sedai - 20/11/2012 04:09:44 PM 1073 Views
Your own example disproved your point... fionwe1987 - 20/11/2012 04:39:25 PM 1190 Views
let's see, she's both asleep and would need hours to regain her strength darius_sedai - 20/11/2012 04:43:17 PM 1090 Views
Enough! fionwe1987 - 20/11/2012 05:04:06 PM 1148 Views
LOL ... whatever. You go on believing that ... no one else sees it this way. *NM* darius_sedai - 20/11/2012 05:20:52 PM 749 Views
What a brilliant argument! fionwe1987 - 20/11/2012 05:25:18 PM 1160 Views
this is why I refuse to continue this debate darius_sedai - 20/11/2012 05:31:11 PM 1101 Views
Re: Your own example disproved your point... Sidious - 20/11/2012 05:10:15 PM 1190 Views
Barasine + Katerine isn't that much less than darius_sedai - 20/11/2012 05:26:31 PM 1198 Views
Re: Barasine + Katerine isn't that much less than Sidious - 20/11/2012 05:31:50 PM 1166 Views
Re: Barasine + Katerine isn't that much less than darius_sedai - 20/11/2012 05:42:53 PM 1148 Views
Excuse me? fionwe1987 - 20/11/2012 05:28:48 PM 1212 Views
see we can agree on the relative strength of Egwene v. Forsaken darius_sedai - 20/11/2012 05:35:07 PM 1158 Views
??? Sidious - 20/11/2012 05:37:01 PM 1255 Views
2 middling sisters darius_sedai - 20/11/2012 05:45:27 PM 1188 Views
Re: Egwene is definitely not 2x Amys... fionwe1987 - 20/11/2012 02:26:47 AM 1094 Views
Re: Egwene is definitely not 2x Amys... Sidious - 20/11/2012 09:03:40 AM 1124 Views
Re: Egwene is definitely not 2x Amys... darius_sedai - 20/11/2012 02:59:08 PM 1161 Views
None of this is backed by any evidence... fionwe1987 - 20/11/2012 03:24:12 PM 1096 Views
who said Cadsuane was 1.5x Moiraine or more? darius_sedai - 20/11/2012 04:03:13 PM 1107 Views
Nope... fionwe1987 - 20/11/2012 04:41:35 PM 1129 Views
wrong darius_sedai - 20/11/2012 04:48:50 PM 1053 Views
My bad. Mized up 1/3 and 2/3. fionwe1987 - 20/11/2012 05:05:05 PM 1169 Views
gotcha *NM* darius_sedai - 20/11/2012 05:46:21 PM 717 Views
Better evidence? LOL! fionwe1987 - 20/11/2012 03:18:55 PM 1139 Views
Huh? How did you come to that conclusion? darius_sedai - 20/11/2012 04:40:56 PM 1145 Views
Exactly *NM* Sidious - 20/11/2012 04:55:28 PM 1094 Views
BEcause Cadsuane is close on the heels of Egwene? fionwe1987 - 20/11/2012 05:10:50 PM 1053 Views
I'm not arguing that. I agree that Cadsuane is pretty close to Egwene darius_sedai - 20/11/2012 05:50:34 PM 1178 Views
Re: Better evidence? LOL! Sidious - 20/11/2012 05:00:47 PM 1057 Views
Interesting, but let's go with your figures... Shannow - 19/11/2012 06:54:54 AM 1177 Views
Indeed Sidious - 19/11/2012 08:16:44 AM 1229 Views
Rand is sort of a special case darius_sedai - 20/11/2012 04:25:02 AM 1096 Views
Regarding Mesaana... Sidious - 20/11/2012 08:42:56 AM 1128 Views
You continue to mix two things darius_sedai - 20/11/2012 03:24:44 PM 1055 Views
No Sidious - 20/11/2012 04:54:19 PM 1296 Views
You are mistaken darius_sedai - 20/11/2012 05:04:40 PM 1142 Views
Yes she did Darius! Sidious - 20/11/2012 05:27:36 PM 1066 Views
Yet there is no duel darius_sedai - 20/11/2012 06:01:17 PM 1075 Views
Explain the .3xSD thing to me... fionwe1987 - 19/11/2012 04:58:57 PM 1297 Views
Probably, but the AS have no idea what 37.5% means darius_sedai - 19/11/2012 02:59:26 AM 1091 Views
It's irrelevant DomA - 19/11/2012 03:46:42 AM 1161 Views
Agreed. Daigian is the marker of the absolute bottom of Aes Sedai strength. Shannow - 19/11/2012 06:55:41 AM 1132 Views
Daigian Sidious - 19/11/2012 08:12:19 AM 1140 Views
It is a direct marker due to RJ's quote Shannow - 19/11/2012 08:50:26 AM 1161 Views
You missed my point Sidious - 19/11/2012 09:08:42 AM 1082 Views
Re: You missed my point DomA - 19/11/2012 02:18:33 PM 1191 Views
Asmodean would never have made the comment about 13 weakest AS darius_sedai - 20/11/2012 04:41:11 AM 1110 Views
Re: Asmodean would never have made the comment about 13 weakest AS Sidious - 20/11/2012 09:07:49 AM 1086 Views
Which would make an average AS around a 30 darius_sedai - 20/11/2012 04:58:56 PM 988 Views
Re: Sure you can Tor - 19/11/2012 09:22:09 AM 1223 Views
Care to explain this... fionwe1987 - 19/11/2012 05:06:28 PM 1042 Views
Indeed Tor - 20/11/2012 07:16:37 AM 1245 Views
Explained far better than I ever could. Bravo. Shannow - 20/11/2012 07:30:29 AM 1099 Views
Well duh. fionwe1987 - 20/11/2012 02:57:24 PM 1220 Views
Incorrect. Shannow - 20/11/2012 04:28:07 PM 1200 Views
No fionwe1987 - 20/11/2012 04:44:16 PM 1186 Views
Re: No Tor - 20/11/2012 04:48:36 PM 1156 Views
That depends... fionwe1987 - 20/11/2012 05:18:46 PM 1025 Views
Re: That depends... Tor - 20/11/2012 05:31:03 PM 1581 Views
You're integrating without lower limits... fionwe1987 - 20/11/2012 02:55:06 PM 1152 Views
Re: You're integrating without lower limits... Tor - 20/11/2012 04:37:57 PM 1203 Views
It matters. fionwe1987 - 20/11/2012 05:22:40 PM 1174 Views
We are not talking about a normal distribution in any case darius_sedai - 20/11/2012 04:44:24 AM 993 Views
Re: We are not talking about a normal distribution in any case Tor - 20/11/2012 07:02:47 AM 1199 Views
You must tell me of this special math... fionwe1987 - 20/11/2012 03:10:09 PM 1068 Views
Re: You must tell me of this special math... Tor - 20/11/2012 04:29:40 PM 1128 Views
Morghase is a placeholder... fionwe1987 - 20/11/2012 04:45:42 PM 1209 Views
Re: Morghase is a placeholder... Tor - 20/11/2012 04:49:54 PM 1498 Views
Why? fionwe1987 - 20/11/2012 05:23:29 PM 1163 Views
Re: Why? Tor - 20/11/2012 05:36:45 PM 1474 Views
Well... Sidious - 18/11/2012 08:43:59 PM 1197 Views
Re: Well... DomA - 19/11/2012 03:40:44 PM 1179 Views
Wow. Shannow - 19/11/2012 03:53:47 PM 1204 Views
Re: Wow. DomA - 19/11/2012 04:26:09 PM 1228 Views
Some points Sidious - 19/11/2012 06:03:00 PM 1274 Views
Well then you're both wrong I'm afraid Sidious - 19/11/2012 06:09:36 PM 1118 Views
Re: Well then you're both wrong I'm afraid DomA - 19/11/2012 07:42:58 PM 988 Views
this is why I think all of the Forsaken are very close in Power darius_sedai - 20/11/2012 04:51:20 AM 1210 Views
Agreed Sidious - 20/11/2012 08:13:37 AM 1255 Views
probably darius_sedai - 20/11/2012 06:18:45 PM 1110 Views
Re: this is why I think all of the Forsaken are very close in Power DomA - 20/11/2012 02:45:18 PM 1111 Views
I think RJ went out of his way to keep strength a bit of a mystery darius_sedai - 20/11/2012 08:42:44 PM 1139 Views
Indeed... DomA - 21/11/2012 05:44:18 PM 1094 Views
I agree darius_sedai - 22/11/2012 01:43:02 AM 1343 Views
Math gurus...Is it possible to find the missing variable... Lanfear - 21/11/2012 05:12:24 PM 1153 Views
the problem is that the Mean is not going to tell us much really darius_sedai - 22/11/2012 02:55:03 AM 1191 Views
Re: the problem is that the Mean is not going to tell us much really Lanfear - 22/11/2012 03:15:33 AM 1521 Views
I do not think you can calculate the Mean without knowing the Units of Power darius_sedai - 22/11/2012 03:53:59 AM 1269 Views
Re: Math gurus...Is it possible to find the missing variable... Tor - 23/11/2012 02:59:12 PM 1577 Views
Disregard this post *NM* Tor - 23/11/2012 03:02:24 PM 980 Views
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