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Once again, this argument is not inductively forceful. However, if the argument were changed so as to indicate a sufficiently high probability of James' gaining a science degree, and/or to indicate a sufficiently high proportion of science degree-earners earning better-than-average salaries, then the argument would be inductively forceful. Of course the argument becomes inductively forceful if the word 'probably' is simply deleted from PI. It would also be inductively forceful if the word 'Most' in P2 were changed to 'All'; but it would not be inductively sound, since P2 would be false. Not everyone with a science degree earns a better-than-average salary.

Another tricky situation that sometimes arises is illustrated by the following:

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