Here's the scenario: Public transit is strongly promoted by municipalities. The benefit of municipalities promoting public transit like buses is that more money brought in by users of the service can be turned into improvements in the transit system. Unfortunately, most citizens won't bother using public transit if it is unreliable or inconvenient. With buses, reliability is primarily related to the buses running on time, and convenience is tied to the frequency of service and location of the bus routes. The London Transit Commission is reviewing London's bus service in a two part study. The first part involved surveying London citizens on their use and opinions about the London bus system. The survey involved a questionnaire sent to a simple random sample of registered voters in London. Respondents answered the following questions: 1. How frequently have you used London buses in the last three months? 1 = never 2=1to5instances 3=6to15times 4 = more than 15 times 2. Think about your most recent trip using London buses. Did your use of the bus result in you arriving within 5-minute walk of your destination? (Yes/No/I don't remember) 3. Think of a time you road London buses and experienced a delay in arrival of the bus at your pick up location. How many minutes (approximately) was the bus delayed? The second part of the study involved collecting data from the electronic records of the bus system. The study specifically focused on data collected from buses during the year 2022. These records included: The number of minutes each bus deviated from their schedule (e.g. if a bus was running exactly on time, its deviation was 0 minutes. If it was running behind schedule, its deviation was a negative value (like -3 minutes). If it was running ahead of schedule, its deviation was a positive value. The number of passengers riding the bus Reasons for any identified delays of a bus (e.g. car accident, bus break down, traffic jam) Whether the accessibility services (e.g. wheel chair ramp, reserved seating) is used by customers The London Transit Commission will use the data from these two parts of the study to help understand customers experience and quality of service.

The question is

The London Transit commission want to use the data collected to answer the following research question:

Is the time deviation from schedule that a bus experiences influenced by the number of passengers riding the bus?

What combination of number of variables and type of variables correctly describes this research question?