The document contains data from a sample distributed into 4 intervals. It provides the frequency, relative frequency, and cumulative relative frequency for each interval. A chart shows the distribution of the sample into the 4 intervals.

1. FRECUENCIA RELATIV
INTERVALO MC fi fi acum Fraccion Decimal
[40,50) 45 75 75 1/4 0.25
[50,60) 55 75 150 1/4 0.25
[60,70) 65 120 270 2/5 0.40
[70,80] 75 30 300 0 0.10
TOTAL 300 1 1.00
140
120
100
1
80
2
60
3
40 4
20
0
1 2 3 4
140
120
4
100
80
3
Series1
60
40 2
20
1
0
1 2 3 4
0 20

2. FRECUENCIA RELATIVA
Porcentage Porcentage acum Grados
25.00% 25.00% 90
25.00% 50.00% 90
40.00% 90.00% 144
10.00% 100.00% 36
100.00% 360
PORCENTAGE
1 2 3 4
10%
25%
40%
25%
1
2
3
4
20 40 60 80 100 120 140