Answer: The relative frequency of group 1=[tex]0.25[/tex]
The relative frequency of group 2=[tex]0.75[/tex]
Step-by-step explanation:
The total numbers in the first row =[tex]30+90=120[/tex]
Group 1: 30
The relative frequency of group 1=[tex]\frac{\text{Number in group 1}}{\text{total in first row}}[/tex]
∴The relative frequency of group 1=[tex]\frac{30}{120}=0.25[/tex]
Similarly, Group 2: 90
The relative frequency of group 2=[tex]\frac{\text{Number in group 2}}{\text{total in first row}}[/tex]
∴The relative frequency of group 2=[tex]\frac{90}{120}=0.75[/tex]
