Self-study
Support At Tromen University this semester, some students taking French Literature 205 are also taking Biology 218. █████ ███████ ██████ ███████ ███ ██ ██████ ██ █ ███████ ██████ ██████████ ████ ██ ███ ████████ ██████ ██████ ██████████ ███ ███ ███ █████████████████ ███████
Summary
The author concludes that some students taking FL 205 are not FL majors. Why? Because of the following:
Some students in FL 205 are taking BIO 218.
All students in BIO 218 are bio majors.
Missing Connection
The premises, together, allow us to infer that some students in FL 205 are bio majors (because some FL 205 students are in BIO 218, and everyone in BIO 218 is a bio major).
But how to do we get from that inference — some FL 205 students are bio majors — to the conclusion that some FL 205 students are not FL majors?
Notice that “not FL major” is a new concept in the conclusion. At a minimum, we know the correct answer should tell us who is not an FL major.
To go further, the specific connection we want is to get from “bio major” to “not FL major.” This would allow us to conclude that some FL 205 students are not FL majors.
20.
The conclusion drawn above follows █████████ ██ █████ ███ ██ ███ █████████ ██ ███████ ██ ██ ████ ██ ██████ ███████████
a
French Literature 205 ██ █ ████████ ██████ ███ █████████████████ ███████
(A) doesn’t establish who is not an FL major. It leaves open the possibility that the students taking FL 205 are FL majors.
b
Only biology majors ███ ███████ ██ ████ ███████ ████
We already know some FL 205 students are biology majors. What we want to know is that they’re not FL majors. (B) doesn’t establish that.
c
There are more ███████ ██████ ████ █████ ███ █████████████████ ███████
The comparative number of bio and FL majors doesn’t establish who is not an FL major.
d
There are more █████████████████ ██████ ████ █████ ███ ███████ ███████
The comparative number of bio and FL majors doesn’t establish who is not an FL major.
e
It is not ████████ ██ █████ ██ ████ ███████ ███ ██████ ███████████
We know some FL 205 students are bio majors. According to (E), you can’t be both a bio major and FL major. So those FL 205 students who are bio majors are NOT FL majors.