Акс:IQ curve.svg

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Хулоса

Тавсифот Current IQ tests typically have standard scores such that the mean score is 100 with each standard deviation from the mean counting for 15 IQ points.[1] The plot shows, assuming that such scores have a normal distribution, the percentage of people getting a score versus the score itself, from 55 to 145 IQ, that is over a span of six standard deviations. Spans are represented with different colors for each standard deviation above or below the mean. The plot was created with the following gnuplot code:
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Коди манбаъ
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Gnuplot code

set terminal svg name 'IQ_curve' size 600,480 font ',10' rounded
set output 'IQ_curve.svg'

mu    = 100.0
sigma = 15.0
from  = 55
to    = 145

# Normal distribution:
# (continuos normalization approximation, good to ~10 digits in this case)
P(x) = exp(-(x - mu)**2 / (2 * sigma**2)) / (sqrt(2 * pi) * sigma) * 100
# By sigma intervals:
oddsi(x) = (int(abs(x - mu) / sigma) % 2) ^ (x < mu)
Pm(x) =               (x == mu)  ? P(x) : 1/0 # sample at mu
Po(x) = ( oddsi(x) && (x != mu)) ? P(x) : 1/0 # samples in odd sigma intervals
Pe(x) = (!oddsi(x) && (x != mu)) ? P(x) : 1/0 # samples in even sigma intervals

set key off
set border 3
set xlabel 'IQ'
set xtics 10 out nomirror
set mxtics 2
set ylabel 'Population, %'
set ytics 1 out nomirror
set mytics 2
set samples (to - from + 1)
set style function impulses
plot [x = from:to] \
 Pm(x) lw 2, \
 Po(x) lw 2, \
 Pe(x) lw 2
Сана
Манбаъ Кори худ
Муаллиф Alessio Damato, Mikhail Ryazanov
  1. ↑ Kaufman, A.S. (2009) IQ Testing 101, New York (NY): Springer Publishing, pp. 104−109 ISBN: 978-0-8261-0629-2.

Иҷозатнома

I, the copyright holder of this work, hereby publish it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
w:en:Creative Commons
тахсис саҳми яксон 		This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
Шумо озодед:
  • мубодилот намудан – копӣ, паҳн ва фиристадани асар
  • ремикс кардан – татбиқи кор
Under the following conditions:
  • тахсис – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • саҳми яксон – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
This licensing tag was added to this file as part of the GFDL licensing update.
w:en:Creative Commons
тахсис саҳми яксон
This file is licensed under the Creative Commons Attribution-Share Alike 2.5 Generic, 2.0 Generic and 1.0 Generic license.
Шумо озодед:
  • мубодилот намудан – копӣ, паҳн ва фиристадани асар
  • ремикс кардан – татбиқи кор
Under the following conditions:
  • тахсис – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • саҳми яксон – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
Шумо иҷозатномаи хостаи худро интихоб карда метавонед.

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source of file Англисӣ

original creation by uploader Англисӣ

таърихи таъсис

2 ноябри 2012

media type Англисӣ

image/svg+xml

Таърихи файл

Рӯи таърихҳо клик кунед то нусхаи марбути парвандаро бубинед.

ТаърихБандангуштӣАндозаКорбарТавзеҳ
нусхаи феълӣ23:11, 26 ноябри 2020Акси бандангуштӣ аз нусхаи то 23:11, 26 ноябри 2020600 × 480 (9 кбайт)ParanajaReverted to version as of 21:27, 2 November 2012 (UTC)
21:27, 2 ноябри 2012Акси бандангуштӣ аз нусхаи то 21:27, 2 ноябри 2012600 × 480 (9 кбайт)Mikhail RyazanovIQ values are now integers; gnuplot-only approach
09:20, 6 Декабри 2006Акси бандангуштӣ аз нусхаи то 09:20, 6 Декабри 2006600 × 480 (12 кбайт)Alejo2083 {{Information |Description= The IQ test is made so that most of the people will score 100 and the distribution will have the shape of a Gaussian function, with a standard deviation of 15. The plot shows the percentage of people getting a score versus the

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