Seminario-03
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Medidas de tendencia en datos agrupados COLESTEROL xi fi [180;200> 190 5 [200; 220> 210 8 [220;240> 230 13 [240:260> 250 12 [260:280] 270 12 Total 50 Media: x = x = 237.2 COLESTEROL xi [180;200> 190 [200; 220> 210 [220;240> 230 [240:260> 250 [260:280] 270 Total Cuartil 1 Q1 = Li + (1n/4 - Fi - 1) f Q1= 200 + 12.5 - 5 *20 / 8 ∑_( =1)^ ▒ ∑_( =1)^ ▒
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Hoja1Medidas de tendencia en datos agrupadosCOLESTEROLxifihiFiHixi*fi[180;200>19051056950[200; 220>21081613261680[220;240>230132626482990[240:260>250122438743000[260:280]2701224501003240Total5010013211860MedianaModaMedia:ME= Li + (n/2 - Fi - 1) * CMo= 220+240/2 fi Mo= 230x =ME = 220 + (25 - 13) * 20 13x = 237.2Me= 238.45COLESTEROLxifihiFiHixi*fi[180;200>19051056950[200; 220>21081613261680[220;240>230132626482990[240:260>250122438743000[260:280]2701224501003240Total5010013211860Cuartil 1Cuartil 2Cuartil 3 Q1 = Li + (1n/4 - Fi - 1) * CQ2 =Li + (2n/4 - Fi - 1) * CQ3 = Li + (3n/4 - Fi - 1) * C fi fi fiQ1=200 + 12.5 - 5 *20 / 8Q2 = 220 + (25 - 13) * 20/ 13Q3 = 240 + (37.5 - 26)*20/ 12Q1 = 218.75Q2 = 238.45Q3=259.1Percentil 2Percentil 99Decil 5P2 = Li + (2n/100 - Fi - 1) * CP99 =Li + (99n/100 - Fi - 1) * CD5 =Li + (5n/10 - Fi - 1) * C fi fi fiP2 = 180+(1-0)*20/5P99 =260 + (49.5 -38)*20/12D5 =220+(25-13)*20/13P2 = 184P99 =279.1D5 =238.46Desviacin EstandarVarianzaCoeficiente de variacin665.4693CV =25.796693/237.2*100CV =10.8755031 =
= 25.796693
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