Three students were asked to evaluation the hypothesis "All odd numbers > 1 are prime."The math major replied "3 is prime. 5 is prime. 7 is prime. 9 is ... NOT prime. The hypothesis is false."The chemistry major replied "3 is prime. 5 is prime. 7 is prime. 9 is ... NOT prime. 11 is prime. 13 is prime ... The hypothesis is looking good, within experimental error."The engineering major replied "3 is prime. 5 is prime. 7 is prime. 9 is prime. 11 is prime ..."That's one way to cope when you're overmatched by rigor. ;)

 You just described Bioinformatics! sigh We got all 3.
 The version I saw of this joke also had a version for the biology major:3 is prime, 4 is prime, 5 is prime... :)
 Didn't get the "engineering major" part. Why he thought that 9 is prime?
 I didn't get it either, but my guess: The engineering student took a literal view. You told him to evaluate the statement; you gave him a rule. If you say all odd numbers greater than 1 are prime, then so be it.
 I think it might just be implying that engineering students aren't very good at mathematics.
 Because he doesn't understand what "evaluate the hypothesis" means.

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