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November 08, 2025, 05:30:25 am
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Author Topic: Probability question?  (Read 536 times)  Share 

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Yoda

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Probability question?
« on: October 16, 2014, 10:44:14 pm »
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Four student leaders are to be randomly selected for a task from six female and five male student leaders. Find the probability that
a) the four students selected are all male
b)there are an odd number of male students in the group selected
Thankyou
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RKTR

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Re: Probability question?
« Reply #1 on: October 16, 2014, 10:47:30 pm »
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a)  5C4 / 11C4
   
b) 1 male,3 female
     or 3 male, 1 female
     
   (5C1 x 6C3 + 5C3 x 6C1) / 11C4
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