Question

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?
40
10
30
20

Explanation:

Step1: Identify total and adhered truck drivers

Total truck drivers: 40, Adhered: 20.

Step2: Calculate non - adhered drivers

Use formula: Non - adhered = Total - Adhered. So, \(40 - 20 = 20\)? Wait, no, wait the raw data says truck drivers: 20 adhered, 20 did not. Wait, the question is with 20 truck drivers adhering, total 40 surveyed. So non - adhered is \(40 - 20=20\)? But wait the raw data summary says truck drivers: 20 adhered, 20 did not. So the answer should be 20? Wait no, wait the table for truck: total is 40, adhered is 20, so did not adhere is \(40 - 20 = 20\).

Answer:

20