Questions: Intervalos de clase Marca de clase Frecuencia Frecuencia Relativa Frecuencia Relativa acumulada 7,5 137,3 72,4 11 0,22 22 137,3 267,1 202,2 13 0,26 48 267,1 396,9 332 12 0,24 72 396,9 526,7 461,8 6 0,12 84 526,7 656,5 591,6 8 0,16 100

Solution Steps

Sum the frequencies to get the total frequency. \[ 11 + 13 + 12 + 6 + 8 = 50 \]

Divide each frequency by the total frequency to get the relative frequencies. \[ \text{Relative Frequency} = \frac{\text{Frequency}}{\text{Total Frequency}} \]

• For 11: \(\frac{11}{50} = 0.22\)
• For 13: \(\frac{13}{50} = 0.26\)
• For 12: \(\frac{12}{50} = 0.24\)
• For 6: \(\frac{6}{50} = 0.12\)
• For 8: \(\frac{8}{50} = 0.16\)

Add the relative frequencies sequentially to get the cumulative relative frequencies.

• First interval: \(0.22\)
• Second interval: \(0.22 + 0.26 = 0.48\)
• Third interval: \(0.48 + 0.24 = 0.72\)
• Fourth interval: \(0.72 + 0.12 = 0.84\)
• Fifth interval: \(0.84 + 0.16 = 1.00\)

Final Answer