From Lyft's report: > We surveyed 30,000 passengers and 37,000 drivers in 52 major cities. I suspect they may have done some generous extrapolation here...(e.g. "0.1% of the 30,000 Lyft passengers we surveyed got rid of their cars for ridesharing, so 0.1% of the U.S. population must have ditched cars for ridesharing")
you've thrown suspicion on the study without any reasoning behind it. unless your population size is small, all studies extrapolate results. why do you think it's incorrect? for example, maybe the 52 cities they surveyed aren't representative of the whole population (this can be true if they chose the 52 largest cities rather than a random sampling of cities). give your comment some meat to chew on.
It's like sampling people in an airport to get stats on how often everyone flies.