Consider these two inductive arguments.
Argument 1: Every summer for the past 20 years, Fresno's temperature has reached triple digits. Therefore, it is very likely that in, at least, one of the next 20 summers, Fresno's temperature will reach triple digits.
Argument 2: "If a single cell, under appropriate conditions, becomes a man in the space of a few years, there can surely be no difficulty in understanding how, under appropriate conditions, a cell may, in the course of untold millions of years, give origin to the human race." [Herbert Spencer, Principles of Biology]
One of these is considered an inductive argument by analogy and the other is considered an inductive argument through enumeration. Take a guess at which is which and explain why you think that (just based on what you might know about the words "analogy" and "enumeration"). What differences do you see between the first and second arguments? How are these arguments different than the abductive arguments we've talked about?