Answer:
Compound-Complex sentence.
Step-by-step explanation:
A Compound-complex sentence is a sentence that consists of two independent clauses combined with one or more dependent clauses. A compound-complex sentence is one of the complicated yet sophisticated form of sentence that helps to express longer ideas.
The given sentence is an example of a compound-complex sentence.
"While joe waited at the train station' is a dependent clause
'Joe realized he forgot his tuxedo.' 'and he started to panic' are independent clauses.
Thus the given statement exemplifies to be a complex-compound sentence.