document.write( "Question 1196823: You have just been assigned a random 4-digit password made up of digits from 0 to 9. What is the probability that your password starts with a 3? Repetition is not allowed. \n" ); document.write( "
Algebra.Com's Answer #829826 by greenestamps(13200)\"\" \"About 
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\n" ); document.write( "Without restrictions, there are 10 possibilities for the first digit.

\n" ); document.write( "With the restriction, there is only 1 possibility: the first digit must be 3.

\n" ); document.write( "So the probability that the first digit is 3 is 1/10.

\n" ); document.write( "And after the first digit there are no further restrictions; the probability is 1 that the last three digits satisfy the conditions.

\n" ); document.write( "ANSWER: (1/10)*1 = 1/10

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