Final answer:
The statement that Pip and Joe agree to keep the secret of the missing pie and tar water in the rum from Mr. Joe in 'Great Expectations' is false.
Step-by-step explanation:
The provided statement is false. In the sixth chapter of Great Expectations, Pip does not tell Joe about the missing pie and the incident with the tar water in the rum. The conversation about keeping secrets relates to his meeting with the convict, Magwitch, and not with the mishaps of the pie or the rum. Pip is anxious about the theft being discovered, but there is no agreement made with Joe specifically about keeping these details a secret from Mr. Joe, who is in fact the same person as Joe Gargery. Hence, the idea that they agree to keep it a secret from Mr. Joe is incorrect as there is no third party involved.