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    madhuram.mishra's Avatar
    madhuram.mishra Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Sep 5, 2011, 08:28 PM
    In a management class of 100 students, three languages are offered as an additional s
    Subject viz. Hindi, english and kannada. There are 28 students taking hindi, 26 taking kannada and 16 taking english. There are 12 students taking both hindi and english, 4 taking hindi and kannada and 6 that are taking english and kannada. In addition we know that 2 students are taking all the three languages
    (1) if a student is chosen randomly what is the probability that he/se is not taking any of these three languages?
    (2) if a student is chosen randomly what is the probability that he/she is taking exactly one language?
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Sep 6, 2011, 09:02 AM
    (1) First calculate how many students don't take any of the three languages (hint - if you add up the numbers you provided you will see that the total of students taking one or more languages is less than 100). Then divide that number by the total number of students.

    (2) add up the number of people taking exactly one language and divide by the total number of students in the class.
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
    Uber Member
    		  
    #3

    Sep 6, 2011, 09:38 AM
    Same as here:

    https://www.askmehelpdesk.com/mathem...ty-560764.html

    And here:

    https://www.askmehelpdesk.com/mathem...ml#post2726489
    Dilip Kumar's Avatar
    Dilip Kumar Posts: 4, Reputation: 1
    New Member
    		  
    #4

    May 20, 2012, 07:29 PM
    1. o.86
    2. 0.7
    Dilip Kumar's Avatar
    Dilip Kumar Posts: 4, Reputation: 1
    New Member
    		  
    #5

    May 20, 2012, 07:30 PM
    1. 0.86
    2. 0.7
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #6

    May 21, 2012, 06:21 AM
    Quote Originally Posted by Dilip Kumar View Post
    1. 0.86
    2. 0.7
    Sorry this is wrong. You did notice that this question is (a) over 8 months old, and (b) adderssed in the other threads that Unknown008 cited?
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