opinion on the following discussion: Pilot A argues that she is the better pilot of the two, since on their last 120 flights she managed to land on time more times compared to pilot B. Pilot B argues that based on the time of the flight she is a better pilot. The following table shows the number of flights landed on time for each pilot by time of the flight. Day flights Pilot | Landed on time Total A 90 100 19 20 Night flights Pilot Landed on time Total A 10 20 B 75 100 (a) What are the three variables involved in this study? (b) Show that pilot A's argument is correct, that overall she has more flights landed on time. (c) Show that pilot B's argument is also correct, that based on the time of the flight, she has a better record of flights landed on time. (d) Briefly explain to the two pilots what is happening.Do Mountain Bikers Know When They Have Had a Concussion and, Do They Know to Stop Riding? (Clin J Sport Med. 2019 Dec 31). The objective of this study was to establish the prevalence of concussions in mountain bikers and to determine factors that increase their risk of concussion. The variables studied included (a) age (b) gender (c) nationality (d) style of riding (cross-country, downhill, or free-ride) (e) number of years doing mountain biking (f) number of years doing mountain bike racing For each variable, say whether it provides qualitative or quantitative data