Here's one my stats lecturer put up on the course website:
A mathematician, a statistician, and an engineer are asked to test the following hypothesis: All odd numbers greater than one are prime. The mathematician: "Three is a prime, five is a prime, seven is a prime, but nine is not a prime. Therefore, the hypothesis is false." The statistician: "Three is a prime, five is a prime, seven is a prime, nine is not a prime, eleven is a prime, and thirteen is a prime. Hence, five out of six experiments support the hypothesis. There is some evidence that it is true." The engineer: "Three is a prime, five's a prime, seven's a prime, nine's a prime..."