Results 1 to 2 of 2

Math Help - Probabilities Stats

  1. #1
    Member
    Joined
    Jan 2008
    Posts
    118

    Probabilities Stats

    A study of pets in households was done.
    34% of houses had at least one cat
    39% of houses had at least one dog
    60% have a cat or a dog

    1. What percent has no cats or dogs at all?
    2. What percent has both a cat and dog?

    I was confused by the 60% have a cat or dog...does this mean they have somthing, or that the have a cat OR a dog, but not both?

    SO what would you put for an answer?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor

    Joined
    Aug 2006
    Posts
    18,794
    Thanks
    1689
    Awards
    1
    Quote Originally Posted by Morgan82 View Post
    I was confused by the 60% have a cat or dog...does this mean they have somthing, or that the have a cat OR a dog, but not both?
    No it means they have that the have a cat OR a dog, and possibly both?
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 3
    Last Post: September 22nd 2011, 09:46 AM
  2. Approximate joint probabilities using marginal probabilities
    Posted in the Advanced Statistics Forum
    Replies: 0
    Last Post: June 23rd 2011, 04:04 AM
  3. Probabilities
    Posted in the Discrete Math Forum
    Replies: 1
    Last Post: December 14th 2009, 11:20 AM
  4. Stats: Multiple Probabilities
    Posted in the Advanced Statistics Forum
    Replies: 2
    Last Post: December 15th 2008, 08:22 PM
  5. Stats Problem with probabilities
    Posted in the Advanced Statistics Forum
    Replies: 1
    Last Post: April 8th 2008, 12:57 PM

Search Tags


/mathhelpforum @mathhelpforum