From the table we can derive the following :
Revenue earned by B&B from the sale of mini trucks = 9
The total sales revenue earned by all four companies = 431
Recall that relative frequency is calculated using the formula:
[tex]R\mathrm{}F=\text{ }\frac{frequency}{Sum\text{ of frequency}}[/tex]
Hence:
[tex]\begin{gathered} R\mathrm{}F\text{ = }\frac{9}{431} \\ =\text{ }0.02088 \\ \cong\text{ 0.02} \end{gathered}[/tex]
