Question

Driver Non-driver Total
Juniors 26 38 64
Seniors 51 4 55
Total 77 42 119
Using data from the table, what is the marginal relative frequency for drivers? Round your answer to the nearest whole percent value.

Answer 1

To find the marginal relative frequency for drivers, we can use the formula:

\[
\text{Marginal relative frequency for drivers} = \frac{\text{Total number of drivers}}{\text{Total number of individuals}}
\]

From the provided table:

- Total number of drivers = 77
- Total number of individuals = 119

Now we can calculate the marginal relative frequency:

\[
\text{Marginal relative frequency for drivers} = \frac{77}{119} \approx 0.6462
\]

To express this as a percentage, we multiply by 100:

\[
0.6462 \times 100 \approx 64.62\%
\]

Rounding this to the nearest whole percent gives:

\[
\text{Marginal relative frequency for drivers} \approx 65\%
\]

Thus, the marginal relative frequency for drivers is approximately **65%**.