Residents of which of the following cities would probably receive the most cosmic radiation?

Lake Placid is situated at a higher elevation compared to the other cities listed, which impacts the amount of cosmic radiation residents might receive. Cosmic radiation exposure is influenced by altitude; as elevation increases, the atmosphere becomes thinner, allowing more cosmic rays to reach the surface. Therefore, residents in Lake Placid, because of their higher altitude, are likely to experience increased levels of cosmic radiation compared to residents in Miami, Los Angeles, or New York, all of which are at lower elevations.

Additionally, the geographical location of these cities affects their exposure as well, but altitude remains the most significant factor in this context. The influence of elevation emphasizes why Lake Placid stands out among the options given.