The document contains examples of exercises involving frequency distributions and calculating percentiles. It includes 4 exercises (A, B, C, D) with tables showing classes or ranges of values, their frequencies, and calculations to find percentiles. Exercise A includes calculating percentiles for data grouped in classes of 10 and 120 observations. Exercise B involves calculating percentiles for height data grouped into classes of 2 units and 100 total observations. Exercise C follows a similar format to B. Exercise D calculates percentiles for data grouped into classes of 3 units and a total of 125 observations.

1. EJERCICIOSDE LA SEMANA 21 DE JULIO LUIS FERNANDOXUYA AJCET
A. VARIANTE
x f Fa D2 (2*120)/10 24 5
2 3 3 D4 (4*120)/10 48 6
3 8 11 D6 (6*120)/10 72 8
4 9 20 D8 (8*120)/10 96 10
5 11 31
6 20 51 P5 (5*120)/100 6 3
7 19 70 P27 (27*120)/100 32 6
8 16 86 P43 (43*120)/100 52 6
9 13 99 P85 (85*120)/100 102 10
10 11 110 P98 (98*120)/100 118 12
11 6 116
12 4 120
Q2 (2*120)/4 60 mas cercano70 = variante 7
Q3 (3*120)/4 90 más cercano99= variante 9
Q4 (4*120)/4 120 = variante 12
D2,D4,D6,D8
P5, P27,P43,P85,P98
EJERCICIO B
Estatura F (frecuencia)
FA
ENTRE
ESTATURA
60 62 5 5 Q2 (2*100)/4 50 66 - 68
63 65 30 35 Q3 (3*100)/4 75 69 - 71
66 68 30 65 Q4 (4*100)/4 100 72 - 74
69 71 27 92
72 74 8 100 D2 (2*100)/10 20 63 - 65
D5 (5*100)/10 50 66 - 68
D6 (6*100)/10 60 66 - 68
Q2,Q3,Q4 D8 (8*100)/10 80 69 - 71
D20,D50,D60,D80
P5, P75,P43,P85,P98 P5 (5*100)/100 5 60 - 62
P75 (75*100)/100 75 69 - 71
P43 (43*100)/100 43 66 - 68
P85 (85*100)/100 86 69 - 71
P98 (98*100)/100 98 72 - 74

2. EJERCICIO
C
ENTRE
ESTATURA
Q2 (2*100)/4 50 66 - 68
Clase X ( Estatura) f FA Q3 (3*100)/4 75 69 - 71
60 62 5 5 Q4 (4*100)/4 100 72 - 74
63 65 18 23
66 68 42 65 D2 (2*100)/10 20 63 - 65
69 71 27 92 D5 (5*100)/10 50 66 - 68
72 74 8 100 D7 (6*100)/10 60 66 - 68
D9 (8*100)/10 80 69 - 71
Q2,Q3,Q4
D20,D50,D70,D90 P5 (5*100)/100 5 60 - 62
P5, P75,P43,P85,P98 P75 (75*100)/100 75 69 - 71
P43 (43*100)/100 43 66 -68
P85 (85*100)/100 85 69 - 71
P98 (98*100)/100 98 72 - 74
EJERCICIO
D SE ENCUENTRA
EN VARIANTE:
X f F Q2 (2*125)/4 62.5 4
1 7 7 Q3 (3*125)/4 93.75 6
2 19 26 Q4 (4*125)/4 125 8
3 25 51
4 12 63 D2 (2*125)/10 25 2
5 23 86 D4 (4*125)/10 50 3
6 15 101 D6 (6*125)/10 75 5
7 8 109 D8 (8*125)/10 100 6
8 16 125
P5 (5*125)/100 6 1
Q2,Q3,Q4 P27 (27*125)/100 34 3
D20,D40,D60,D80 P37 (37*125)/100 46 3
P5, P27,P37,P75,P95 P75 (75*125)/100 94 6
P95 (95*125)/100 119 8