I believe they recommended no more than 2 per week, but really it's up to you

I don't think you need to remember names if you know how it works :) As long as you can think quickly and accurately don't worry about being able to put a name on a type of reasoning

A claim isn't necessarily a premise, it can be a conclusion, context...

It's in the title of the lesson in the syllabus :)

I think the issue with C is that it's only weakening part of the argument. The argument is that the airlines should focus on the comfort of leisure travelers rather than the comfort of business travelers because leisure travelers represent 80% of their customer base.

C only tells you "well they shouldn't focus on the COMFORT of leisure passengers because that's not their main priority." It kinda takes for granted the MAIN ASSUMPTION that buying 80% of all the airlines tickets means the airline should focus on them.

D directly tackles that assumption: Just bc they buy 80% of tickets doesn't mean they bring in the most revenue. Business class customers do.

D being true completely destroys the original argument to the point where we don't even care about C anymore.

Airlines should prioritize business class customers bc they bring in more money, so who cares what the leisure travelers prefer?

I felt it was too general compared to B. It sounded to me like it was saying "yeah, if the data does X, then Y" whereas B said "The data DID X, so Y"

yep, it's a weaken question

I feel like if one comes to mind immediately it's worth keeping it in mind when reading the answers. But I usually just read the answers and immediately cross out those that are irrelevant, then usually it's down to two and I'll pick the one that actually discusses an alternative hypothesis.

perhaps "some of the things that like milk are cats?"

I like to thing of negated as making it not true, whereas contrapositive is more like reversing it.

If you like math, you can kinda compare it to how opposites and inverse are two very different concepts.

The opposite of 4 is -4. The inverse of 4 is 1/4.

The opposite of A->B is whatever makes A->B NOT true.

The contrapositive of A->B is /B->/A. It doesn't affect the truth of the previous statement at all, they both coexist.

basically it's if it's more likely to be true than not, it generally is considered reasonable. However if there's no way for you to know that (it's just a likely that it could be true or that it could be false) it's an unreasonable assumption.

Ex: imagine you have an argument about how your friend definitely cheated on a math test because they never went to class, yet got an A.

You're assuming that they didn't study hard for it. How likely is it that that's true?

You're assuming that they're not naturally gifted. How likely is it that that's true>

For example it could be part of a premise:

Speed limits are ineffective. The number of car accidents due to speeding keeps increasing, even though the city keeps expanding their speed limits in every street.