ESTADISTICA PARCIAL N 2 EJERCICIO 1

EXAMEN DE ESTADISTICA PARCIAL Nº 2
Ejercicio 1.a)
ARGENTINA:
M =∑X = 1000 + 1200 + 1450 + 1184 + 1126 + 1058 = 7018 = 1169,6
N 6 6

Mediana:1000, 1058, 1126, 1184, 1200, 1450

n + 1 = 7 = 3,5 Mediana= 1126 + 1184 = 1155
2 2 2
Varianza:
V= ∑ ( x – x)² =
n

V=(1058-1170)² + (1000-1170)² + (1200-1170)² + (1450-1170)² + (1184-1170)² + (1126-1170)²=
6
V= 122.875,33 = 20279
6

O= Sx = 143,11

CV= S 143,11 = 0,12234
x 1169,67

Co = 3 .(x – Me) = 3 . (1170 – 1155) = 0,31
O 143,11

R= 1450 – 1000 = 450

Q1 = k . (n + 1) = 1 . 7 = 1,75
4 4

Q2 = 1000 + 1058 = 2058= 1029
2 2
Q3 = 3 . 7 = 5,25
4
Q3= 1200 + 1450 = 2680 = 1325
2 2


ESPAÑA:
x = ∑xn

x = 628 + 450 + 308 + 276 + 276 + 211 = 2149 = 358,16
6 6
V= ∑ (x – x)²=
n

V = ∑ (628-358)² + (450-358)² + (308-358)²+ (276-358)² + (211-358)² = 118920,83
6

V = 118920,83 = 19820
6

O = = 140,78

CV = S = 140,78 = 0,4
X 358,16



ESTADOS UNIDOS:
x = ∑ x
n
x= ∑ 249 + 229 + 207 + 207 + 195 +196 = 1283 = 213,83
6 6
V= ∑ (x – x)²=
n
V = ∑ (249-214)² + (229-214)² + (207-214)² + (195-214)² +(196-214)² = 2232,83
6
V = 2232,83 = 372,14
6

O = 19,29

CV = S = 19,3 = 0,09
x 214

HOLANDA:
x = ∑ x
n
x = ∑ 240 + 219 + 197 + 192 + 192+181 = 1221 = 203,5
6 6
V= ∑ (x – x)²=
n
V = ∑ (240-203,5)² + (219-203,5)² + (197-203,5)² + (192-203,5)² + (181-203,5)² = 2385,5...