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June 5th, 2013, 03:41 AM  #1 
Newbie Joined: May 2013 Posts: 16 Thanks: 0  Elementary Probability
One card is drawn at random from a shuffled pack of 52 cards. What is the probability that it will be (i) A spade (ii) A black card (iii) A king (iv) Any card except queen. Hello there, friends please help with this question .. 
June 5th, 2013, 03:57 AM  #2 
Senior Member Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,211 Thanks: 520 Math Focus: Calculus/ODEs  Re: Elementry Probability
In each case you want to divide the number of favorable outcomes by the total number of outcomes. When drawing a card, we know there are 52 possible outcomes. Can you state the number of favorable outcomes for each case? For example, if we are asked for the probability that we will draw a black 9, we use the fact that there are 2 black 9's and we than state the probability as: Can you now proceed? 

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