Results 1 to 4 of 4

Math Help - A few basic probability problems

  1. #1
    Newbie
    Joined
    May 2013
    From
    United States
    Posts
    2

    A few basic probability problems

    1. 20 people go to a movie theater, and have a chance to win a $100 gift card, $50 gift card, 2 tickets, or a free popcorn. How many ways can the prizes be awarded?


    2. Five couples go to the baseball game. How can the seats be arranged if each couple wants to sit together and the order within each couple does not matter?


    3. A man's wallet contains 4 twenties, 3 fifties, and 3 tens. What is the probability that his son will randomly take out a twenty, given that he already took out a ten?


    4. Pizza Hut has 10 toppings for pizza. How many ways can someone chose 3 toppings for one pizza?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    Joined
    Sep 2012
    From
    Australia
    Posts
    3,651
    Thanks
    602

    Re: A few basic probability problems

    Hey jrbraves26.

    Can you show us your attempts please? Even if its a partial one, it's better than nothing.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    May 2013
    From
    United States
    Posts
    2

    Re: A few basic probability problems

    Chiro,

    Thank you for the prompt reply. The reason I am asking these problems here is because I do not have an idea of where/how to start. I believe that these are permutations/combinations, if that helps.

    1. 80 ways? 8 * 4 = 80, I feel like this is wrong.

    2.

    3.

    4. 10 *9 *8 maybe?
    Follow Math Help Forum on Facebook and Google+

  4. #4
    MHF Contributor
    Joined
    Sep 2012
    From
    Australia
    Posts
    3,651
    Thanks
    602

    Re: A few basic probability problems

    Hint: How many ways can the first prize awarded? (You have 20 people and 4 prizes so you have (Person1,Prize1) (Person2,Prize1) ... (Last Person,Last Prize)).

    Use that hint and apply it to the next way to get the next prize until you are finished with awarding prizes.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Need Help with a Few Basic Problems Please
    Posted in the Advanced Algebra Forum
    Replies: 3
    Last Post: February 18th 2013, 10:35 PM
  2. Replies: 1
    Last Post: January 30th 2013, 07:23 PM
  3. Replies: 1
    Last Post: March 1st 2011, 04:39 PM
  4. help with two basic probability problems.
    Posted in the Advanced Statistics Forum
    Replies: 3
    Last Post: November 26th 2009, 07:09 AM
  5. basic trigonometry problems, help?
    Posted in the Trigonometry Forum
    Replies: 2
    Last Post: February 22nd 2009, 11:41 PM

Search Tags


/mathhelpforum @mathhelpforum