Which of the following are types of implicit memory?

Implicit memory includes procedural memory, priming and classical conditioning effects, so statements 2, 3 and 5 hold true.

Statement 2 is right because procedural memory, knowing how to ride a cycle or type, operates without conscious recall.

Statement 3 is right because priming, where an earlier exposure eases later processing, works below awareness.

Statement 5 is right because classically conditioned responses are learned and expressed without deliberate remembering.

Semantic memory in statement 1 is explicit, the conscious store of facts and general knowledge.

Episodic memory in statement 4 is also explicit, the conscious recall of personally experienced events.

Implicit or non declarative memory is expressed through performance, whereas explicit or declarative memory is consciously retrieved and stated.