document.write( "Question 435578: a package contains 12 batteries, 3 of which are defective. if 4 are selected randomly, find the probability of getting: \r
\n" ); document.write( "\n" ); document.write( "a) 0 defective batteries b) 1 defective battery c) 3 defective batteries
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Algebra.Com's Answer #301428 by robertb(5830)\"\" \"About 
You can put this solution on YOUR website!
The experiment follows a hypergeometric distribution.\r
\n" ); document.write( "\n" ); document.write( "a) \"%289C4%2A3C0%29%2F%2812C4%29+=+14%2F55\"\r
\n" ); document.write( "\n" ); document.write( "b) \"%289C3%2A3C1%29%2F%2812C4%29+=+28%2F55\"\r
\n" ); document.write( "\n" ); document.write( "c) \"%289C1%2A3C3%29%2F%2812C4%29+=+1%2F55\"
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