Question

obile ownership
driving data scenario
you are provided with data collected from a traffic study that recorded
whether drivers of various vehicle types adhered to speed limits. the data
includes 200 observations categorized into vehicle types (car, suv, truck)
and whether the driver was speeding (\yes\ or
o\).
raw data summary:

• car drivers: 50 adhered to speed limits, 30 did not.
• suv drivers: 40 adhered to speed limits, 40 did not.
• truck drivers: 20 adhered to speed limits, 20 did not.

using the raw data, the table shown was constructed.

vehicle type	adhered to speed limit (yes)	did not adhere to speed limit (no)	total
suv		40	80
truck	20		40
total			200

with 20 truck drivers adhering to speed limits and a total of 40 truck drivers surveyed, how many truck drivers did not adhere to speed limits?
options: 30, 20, 10, 40

Explanation:

Step1: Identify total and adhered truck drivers

Total truck drivers surveyed: 40. Truck drivers who adhered: 20.

Step2: Calculate non - adhering truck drivers

Use the formula: Non - adhering = Total - Adhering. So, \(40 - 20 = 20\).

Answer:

20