document.write( "Question 1114092:  b) The Weather Office forecasts the probability of a rainfall the next day as forty-two percent. What is the probability that it will not rain?                                                                            
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document.write( "c) Which of the followings are not probabilities?\r
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document.write( "a)	0.005
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document.write( "b)	1.02
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document.write( "c)	¼
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document.write( "d)	101%
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document.write( "d)  A box contains 5 blue, 7 red and 8 yellow balls. A ball is drawn at random. What is the       probability that the ball drawn is not yellow? 																		    (2 marks)\r
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document.write( "e) How many blue balls have to be added to the box to increase the probability of picking a blue ball at random to 50%?\r
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| Algebra.Com's Answer #729110 by Fombitz(32388)     You can put this solution on YOUR website! b) It must either rain or not rain so, \n" ); document.write( " \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( "c) Probability must a number between 0 and 1. \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( "d) Find the probability that the ball is yellow. \n" ); document.write( " \n" ); document.write( "So the complement would be the probability of not yellow. \n" ); document.write( " \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( "e) \n" ); document.write( "Let the number of blue balls added be equal to X, \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |