document.write( "Question 360786: a spinner has regions numbered 1 through 21. what is the probability that the spinner will stop on an even number or a mulitiple of 3? reduce fraction if necessary. \n" ); document.write( "

Algebra.Com's Answer #257451 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi, 
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document.write( "21 numbers from  1 to 21
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document.write( "10 even numbers: 2,4,6,8,10,12,14,16,18,20
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document.write( "7 numbers which are multiple of 3: 3,6,9,12,15,18,21
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document.write( "P(even 'or' multiple of three) = P(even) + P(multiple of three)
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document.write( "P(even 'or' multiple of three) = 10/21 + 7/21 = 17/21 \n" );
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