Results 1 to 2 of 2

Math Help - Finding probability from a table.

  1. #1
    Newbie
    Joined
    Nov 2009
    Posts
    3

    Thumbs down Finding probability from a table.

    31% of college students say they use credit cards b/c of the rewards program. You radomly select 10 students and ask each to namte the reason they use the cards. find probablity that the students use cards b/c of reward program is a) exactly two b)more than two, c) between two and five inclusive.

    a) P(2)=
    b) P(x>2)=
    c) P(< x> 5)=

    TABLE

    n=10 p=31
    x P(X)
    1 0.110
    2 0.222
    3 0.266
    4 0.209
    5 0.113
    6 0.042
    7 0.011
    8 0.002
    9 0.000
    10 0.000

    thanks for your help!
    Last edited by mr fantastic; November 14th 2009 at 04:55 AM. Reason: Moved from another thread, title change, removed unintended smiley (wink)
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by rosedavis View Post
    31% of college students say they use credit cards b/c of the rewards program. You radomly select 10 students and ask each to namte the reason they use the cards. find probablity that the students use cards b/c of reward program is a) exactly two b)more than two, c) between two and five inclusive.

    a) P(2)=
    b) P(x>2)=
    c) P(< x> 5)=

    TABLE

    n=10 p=31
    x P(X)
    1 0.110
    2 0.222
    3 0.266
    4 0.209
    5 0.113
    6 0.042
    7 0.011
    8 0.002
    9 0.000
    10 0.000

    thanks for your help!
    Get the required probabilities from the table. Where are you stuck in doing this?
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Probability distribution table
    Posted in the Statistics Forum
    Replies: 3
    Last Post: August 24th 2011, 02:39 AM
  2. Completing a probability table and finding expected value.
    Posted in the Advanced Statistics Forum
    Replies: 2
    Last Post: May 6th 2010, 06:54 AM
  3. Constingency Table: Probability
    Posted in the Advanced Statistics Forum
    Replies: 3
    Last Post: November 23rd 2009, 01:32 AM
  4. Probability from T distribution table?
    Posted in the Advanced Statistics Forum
    Replies: 1
    Last Post: October 22nd 2009, 01:14 AM
  5. Joint probability table
    Posted in the Statistics Forum
    Replies: 2
    Last Post: October 15th 2008, 08:41 AM

Search Tags


/mathhelpforum @mathhelpforum