Question

analyzing driving statistics through conditional, marginal, or joint frequencies to determine possible associations
types of vehicles vs. safety features
the table lists different types of vehicles (sedan, suv, truck, convertible, hatchback) and the number equipped with various safety features (airbags, antilock brakes, traction control, lane departure warning) and their total counts.
what percentage of suvs have antilock brakes?
25.10%
24.68%
26.38%
27.23%
(table:
rows: sedan, suv, truck, convertible, hatchback, total
columns: airbags, antilock brakes, traction control, lane departure warning, total
sedan: 500, 480, 0, 450, 1430
suv: 600, 590, 580, 580, 2350
truck: 400, 0, 380, 0, 780
convertible: 300, 290, 0, 0, 590
hatchback: 450, 440, 430, 430, 1750
total: 2250, 1800, 1390, 1460, 6900)

Explanation:

Step1: Identify SUV's total and antilock brakes count

From the table, SUV's total is 2350 (from "Total" column for SUV row), and SUV's antilock brakes count is 590 (from "Antilock Brakes" column for SUV row).

Step2: Calculate the percentage

The formula for percentage is $\frac{\text{Number of SUVs with antilock brakes}}{\text{Total number of SUVs}} \times 100\%$. Substitute the values: $\frac{590}{2350} \times 100\%$. Calculate $\frac{590}{2350} \approx 0.2510$, then multiply by 100% to get $0.2510 \times 100\% = 25.10\%$.

Answer:

25.10%