Hi Brent!
I have a quick question regarding the video 38 of RC module. The video is a RC question about cyclists. I think I really understand the somehow quantitative logic that we need in order to solve the question (I'm talking about the part that you explain the scenarios for cyclists involved in accidents and victims). Even though that I picked a wrong answer choice while solving the question on my own, I absolutely understood the question after your explanation. However,I wonder how you got to "less than 80% of cyclists in accidents were not wearing helmet" assumption. Yes, I understand that since 80% of the victims were not wearing helmet, the lower percentage of cyclists who were not wearing helmets in accidents we'd have, the better our conclusion would sound. So the part that I understand is that if out of 10,000 cyclists involved in accidents last year 8000 did not wear helmets, since 800 who died did not wear helmet, we would have 800/8000 (10%). If out of 10,000 cyclists involved in accidents last year 2000 did not wear helmets, we would have 800/2000 (40%). So the higher this percentage, the more logical our conclusion. However, I feel like if the answer choice C had said less than 70 or 60% (which is OK with your assumption since they are less than 80%), I would have not picked it. I feel like that our assumption should have mentioned less than 50%, not 80% (so only if C had said 10,20,30,40, or less than 50% I would have picked it (I know that C says 20% and that's why it is the answer).
I don't know if my question is clear. I would appreciate it if you enlighten me. Thanks a lot in advance.
I have a quick question regarding the video 38 of RC module. The video is a RC question about cyclists. I think I really understand the somehow quantitative logic that we need in order to solve the question (I'm talking about the part that you explain the scenarios for cyclists involved in accidents and victims). Even though that I picked a wrong answer choice while solving the question on my own, I absolutely understood the question after your explanation. However,I wonder how you got to "less than 80% of cyclists in accidents were not wearing helmet" assumption. Yes, I understand that since 80% of the victims were not wearing helmet, the lower percentage of cyclists who were not wearing helmets in accidents we'd have, the better our conclusion would sound. So the part that I understand is that if out of 10,000 cyclists involved in accidents last year 8000 did not wear helmets, since 800 who died did not wear helmet, we would have 800/8000 (10%). If out of 10,000 cyclists involved in accidents last year 2000 did not wear helmets, we would have 800/2000 (40%). So the higher this percentage, the more logical our conclusion. However, I feel like if the answer choice C had said less than 70 or 60% (which is OK with your assumption since they are less than 80%), I would have not picked it. I feel like that our assumption should have mentioned less than 50%, not 80% (so only if C had said 10,20,30,40, or less than 50% I would have picked it (I know that C says 20% and that's why it is the answer).
I don't know if my question is clear. I would appreciate it if you enlighten me. Thanks a lot in advance.
