I'm an American medical student, and I got this score as well, but that's mostly because they kept throwing in drugs that were never marketed or approved in the US and thankfully, they don't make us memorize all the drugs, just the generic names of ones used in America.
> binom.test(11,n=24, alternative = "two.sided")
Exact binomial test
data: 11 and 24
number of successes = 11, number of trials = 24, p-value = 0.8388
alternative hypothesis: true probability of success is not equal to 0.5
95 percent confidence interval:
0.2555302 0.6717919
sample estimates:
probability of success
0.4583333
Probably not. Or at least we can't conclude that from the data. ¯\_(ツ)_/¯