Results 1 to 2 of 2

Math Help - Universal Set | Please validate the answers I provided.

  1. #1
    Newbie
    Joined
    Jan 2013
    From
    United States
    Posts
    16

    Universal Set | Please validate the answers I provided.

    I am a little stuck on this problem:

    The universal set for this problem is the set of students attending Miskatonic University.

    M=the set of math majors
    CS= the set of computer science majors
    T=the set of students who had a test on Friday
    P=the set of students who ate pizza last Thursday

    Using only the set theoretical notation, rewrite each of the following assertions.

    (A) Computer science majors had a test on Friday. CS T
    (B) No math major ate pizza last Thursday. M P=
    (C) Some math majors did not east pizza last Thursday. I am not sure how to accurately write this answer.
    (D) Those computer science majors who did not have a test on Friday ate pizza on Thursday. I am assuming this is the answer: CSTP
    (E) Math or computer science majors who ate pizza on Thursday did not have a test on Friday. Again I am assuming: MCSPT
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor

    Joined
    Apr 2005
    Posts
    15,579
    Thanks
    1418

    Re: Universal Set | Please validate the answers I provided.

    Quote Originally Posted by rtrumpow View Post
    I am a little stuck on this problem:

    The universal set for this problem is the set of students attending Miskatonic University.

    M=the set of math majors
    CS= the set of computer science majors
    T=the set of students who had a test on Friday
    P=the set of students who ate pizza last Thursday

    Using only the set theoretical notation, rewrite each of the following assertions.

    (A) Computer science majors had a test on Friday. CS T

    Yes that is correct.

    (B) No math major ate pizza last Thursday. M P=

    Yes, that is correct.

    (C) Some math majors did not east pizza last Thursday. I am not sure how to accurately write this answer.

    The set of math majors is NOT a subset of the set of the set of students who ate pizza last Thursday.

    (D) Those computer science majors who did not have a test on Friday ate pizza on Thursday. I am assuming this is the answer: CSTP

    That is nonsense! T is a set of students and CS is not a student. Even if x were a student such that x\in T, that is a statement, not a set and so cannot be a subset of P.

    (E) Math or computer science majors who ate pizza on Thursday did not have a test on Friday. Again I am assuming: MCSPT
    Again, you cannot use \in between two of these sets. I think you mean M\cup CS.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. provided that
    Posted in the Discrete Math Forum
    Replies: 14
    Last Post: November 11th 2010, 01:04 PM
  2. Replies: 0
    Last Post: November 5th 2008, 06:23 AM
  3. Replies: 0
    Last Post: November 3rd 2008, 04:49 PM
  4. Replies: 1
    Last Post: November 3rd 2008, 08:51 AM
  5. Replies: 1
    Last Post: November 2nd 2008, 07:04 AM

Search Tags


/mathhelpforum @mathhelpforum