Faili:IQ curve.svg

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Muhtasari

Maelezo 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:
SVG genesis
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The SVG code is valid.
 
This chart was created with Gnuplot.
 
This chart uses translateable embedded text.
Msimbo chanzo
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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
Tarehe
Chanzo Kazi yangu
Mwandishi 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.

Hatimiliki

I, the copyright holder of this work, hereby publish it under the following licenses:
GNU head Ruhusa inakubalika kunakili, kusambaza na/au kurekebisha chini ya matakwa ya GNU Free Documentation License, Toleo 1.2 au toleo lolote lile la baadaye ambalo litachapishwa na Free Software Foundation; lisilo na Sehemu Tofauti, lisilo na Maandishi-Kava-Kwa-Mbele, na lisilo na Maandishi-Kava-Kwa -Nyuma. Nakala ya hatimiliki inajumlishwa kwenye sehemu ilioitwa GNU Free Documentation License.
w:en:Creative Commons
sifa shiriki sawa 		Faili hii imeidhinishwa chini ya Creative Commons Attribution- Attribution-Share Alike 3.0 Unported leseni.
Uko huru:
  • kushiriki – kunakili na kusambaza kazi hiyo
  • kwa remix – kurekebisha kazi
Chini ya masharti yafuatayo:
  • sifa – Ni lazima utoe mkopo unaofaa, utoe kiungo cha leseni, na uonyeshe ikiwa mabadiliko yalifanywa. Unaweza kufanya hivyo kwa njia yoyote inayofaa, lakini si kwa njia yoyote inayopendekeza mtoa leseni akuidhinishe wewe au matumizi yako.

shiriki sawa – Ukichanganya, kubadilisha, au kujenga juu ya nyenzo, lazima usambaze michango yako chini ya same or compatible license kama ya awali.

This licensing tag was added to this file as part of the GFDL licensing update.
w:en:Creative Commons
sifa shiriki sawa
This file is licensed under the Creative Commons Attribution-Share Alike 2.5 Generic, 2.0 Generic and 1.0 Generic license.
Uko huru:
  • kushiriki – kunakili na kusambaza kazi hiyo
  • kwa remix – kurekebisha kazi
Chini ya masharti yafuatayo:
  • sifa – Ni lazima utoe mkopo unaofaa, utoe kiungo cha leseni, na uonyeshe ikiwa mabadiliko yalifanywa. Unaweza kufanya hivyo kwa njia yoyote inayofaa, lakini si kwa njia yoyote inayopendekeza mtoa leseni akuidhinishe wewe au matumizi yako.
shiriki sawa – Ukichanganya, kubadilisha, au kujenga juu ya nyenzo, lazima usambaze michango yako chini ya same or compatible license kama ya awali.
Unaweza kuchagua leseni ya chaguo lako.

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2 Novemba 2012

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Tarehe/SaaPicha ndogoVipimoMtumiajiMaelezo
sasa hivi23:11, 26 Novemba 2020Picha ndogo ya toleo la 23:11, 26 Novemba 2020600 × 480 (9 KB)ParanajaReverted to version as of 21:27, 2 November 2012 (UTC)
21:27, 2 Novemba 2012Picha ndogo ya toleo la 21:27, 2 Novemba 2012600 × 480 (9 KB)Mikhail RyazanovIQ values are now integers; gnuplot-only approach
09:20, 6 Desemba 2006Picha ndogo ya toleo la 09:20, 6 Desemba 2006600 × 480 (12 KB)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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