document.write( "Question 998529: please help me solve the following question
\n" ); document.write( " “A fair die is thrown at random three independent times. Let Y be the maximum of these three outcomes, each outcome being the number shown on the face uppermost on the die. Find the probability density function of Y”.
\n" ); document.write( "

Algebra.Com's Answer #617419 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
I used EXCEL to generate all \"216+%283%2A3%2A3%29\" possible outcomes and sums.
\n" ); document.write( "1 1 1 3
\n" ); document.write( "1 1 2 4
\n" ); document.write( "1 1 3 5
\n" ); document.write( "1 1 4 6
\n" ); document.write( "1 1 5 7
\n" ); document.write( "1 1 6 8
\n" ); document.write( "1 2 1 4
\n" ); document.write( "1 2 2 5
\n" ); document.write( "1 2 3 6
\n" ); document.write( "1 2 4 7
\n" ); document.write( "1 2 5 8
\n" ); document.write( "1 2 6 9
\n" ); document.write( "1 3 1 5
\n" ); document.write( "1 3 2 6
\n" ); document.write( "1 3 3 7
\n" ); document.write( "1 3 4 8
\n" ); document.write( "1 3 5 9
\n" ); document.write( "1 3 6 10
\n" ); document.write( "1 4 1 6
\n" ); document.write( "1 4 2 7
\n" ); document.write( "1 4 3 8
\n" ); document.write( "1 4 4 9
\n" ); document.write( "1 4 5 10
\n" ); document.write( "1 4 6 11
\n" ); document.write( "1 5 1 7
\n" ); document.write( "1 5 2 8
\n" ); document.write( "1 5 3 9
\n" ); document.write( "1 5 4 10
\n" ); document.write( "1 5 5 11
\n" ); document.write( "1 5 6 12
\n" ); document.write( "1 6 1 8
\n" ); document.write( "1 6 2 9
\n" ); document.write( "1 6 3 10
\n" ); document.write( "1 6 4 11
\n" ); document.write( "1 6 5 12
\n" ); document.write( "1 6 6 13
\n" ); document.write( "2 1 1 4
\n" ); document.write( "2 1 2 5
\n" ); document.write( "2 1 3 6
\n" ); document.write( "2 1 4 7
\n" ); document.write( "2 1 5 8
\n" ); document.write( "2 1 6 9
\n" ); document.write( "2 2 1 5
\n" ); document.write( "2 2 2 6
\n" ); document.write( "2 2 3 7
\n" ); document.write( "2 2 4 8
\n" ); document.write( "2 2 5 9
\n" ); document.write( "2 2 6 10
\n" ); document.write( "2 3 1 6
\n" ); document.write( "2 3 2 7
\n" ); document.write( "2 3 3 8
\n" ); document.write( "2 3 4 9
\n" ); document.write( "2 3 5 10
\n" ); document.write( "2 3 6 11
\n" ); document.write( "2 4 1 7
\n" ); document.write( "2 4 2 8
\n" ); document.write( "2 4 3 9
\n" ); document.write( "2 4 4 10
\n" ); document.write( "2 4 5 11
\n" ); document.write( "2 4 6 12
\n" ); document.write( "2 5 1 8
\n" ); document.write( "2 5 2 9
\n" ); document.write( "2 5 3 10
\n" ); document.write( "2 5 4 11
\n" ); document.write( "2 5 5 12
\n" ); document.write( "2 5 6 13
\n" ); document.write( "2 6 1 9
\n" ); document.write( "2 6 2 10
\n" ); document.write( "2 6 3 11
\n" ); document.write( "2 6 4 12
\n" ); document.write( "2 6 5 13
\n" ); document.write( "2 6 6 14
\n" ); document.write( "3 1 1 5
\n" ); document.write( "3 1 2 6
\n" ); document.write( "3 1 3 7
\n" ); document.write( "3 1 4 8
\n" ); document.write( "3 1 5 9
\n" ); document.write( "3 1 6 10
\n" ); document.write( "3 2 1 6
\n" ); document.write( "3 2 2 7
\n" ); document.write( "3 2 3 8
\n" ); document.write( "3 2 4 9
\n" ); document.write( "3 2 5 10
\n" ); document.write( "3 2 6 11
\n" ); document.write( "3 3 1 7
\n" ); document.write( "3 3 2 8
\n" ); document.write( "3 3 3 9
\n" ); document.write( "3 3 4 10
\n" ); document.write( "3 3 5 11
\n" ); document.write( "3 3 6 12
\n" ); document.write( "3 4 1 8
\n" ); document.write( "3 4 2 9
\n" ); document.write( "3 4 3 10
\n" ); document.write( "3 4 4 11
\n" ); document.write( "3 4 5 12
\n" ); document.write( "3 4 6 13
\n" ); document.write( "3 5 1 9
\n" ); document.write( "3 5 2 10
\n" ); document.write( "3 5 3 11
\n" ); document.write( "3 5 4 12
\n" ); document.write( "3 5 5 13
\n" ); document.write( "3 5 6 14
\n" ); document.write( "3 6 1 10
\n" ); document.write( "3 6 2 11
\n" ); document.write( "3 6 3 12
\n" ); document.write( "3 6 4 13
\n" ); document.write( "3 6 5 14
\n" ); document.write( "3 6 6 15
\n" ); document.write( "4 1 1 6
\n" ); document.write( "4 1 2 7
\n" ); document.write( "4 1 3 8
\n" ); document.write( "4 1 4 9
\n" ); document.write( "4 1 5 10
\n" ); document.write( "4 1 6 11
\n" ); document.write( "4 2 1 7
\n" ); document.write( "4 2 2 8
\n" ); document.write( "4 2 3 9
\n" ); document.write( "4 2 4 10
\n" ); document.write( "4 2 5 11
\n" ); document.write( "4 2 6 12
\n" ); document.write( "4 3 1 8
\n" ); document.write( "4 3 2 9
\n" ); document.write( "4 3 3 10
\n" ); document.write( "4 3 4 11
\n" ); document.write( "4 3 5 12
\n" ); document.write( "4 3 6 13
\n" ); document.write( "4 4 1 9
\n" ); document.write( "4 4 2 10
\n" ); document.write( "4 4 3 11
\n" ); document.write( "4 4 4 12
\n" ); document.write( "4 4 5 13
\n" ); document.write( "4 4 6 14
\n" ); document.write( "4 5 1 10
\n" ); document.write( "4 5 2 11
\n" ); document.write( "4 5 3 12
\n" ); document.write( "4 5 4 13
\n" ); document.write( "4 5 5 14
\n" ); document.write( "4 5 6 15
\n" ); document.write( "4 6 1 11
\n" ); document.write( "4 6 2 12
\n" ); document.write( "4 6 3 13
\n" ); document.write( "4 6 4 14
\n" ); document.write( "4 6 5 15
\n" ); document.write( "4 6 6 16
\n" ); document.write( "5 1 1 7
\n" ); document.write( "5 1 2 8
\n" ); document.write( "5 1 3 9
\n" ); document.write( "5 1 4 10
\n" ); document.write( "5 1 5 11
\n" ); document.write( "5 1 6 12
\n" ); document.write( "5 2 1 8
\n" ); document.write( "5 2 2 9
\n" ); document.write( "5 2 3 10
\n" ); document.write( "5 2 4 11
\n" ); document.write( "5 2 5 12
\n" ); document.write( "5 2 6 13
\n" ); document.write( "5 3 1 9
\n" ); document.write( "5 3 2 10
\n" ); document.write( "5 3 3 11
\n" ); document.write( "5 3 4 12
\n" ); document.write( "5 3 5 13
\n" ); document.write( "5 3 6 14
\n" ); document.write( "5 4 1 10
\n" ); document.write( "5 4 2 11
\n" ); document.write( "5 4 3 12
\n" ); document.write( "5 4 4 13
\n" ); document.write( "5 4 5 14
\n" ); document.write( "5 4 6 15
\n" ); document.write( "5 5 1 11
\n" ); document.write( "5 5 2 12
\n" ); document.write( "5 5 3 13
\n" ); document.write( "5 5 4 14
\n" ); document.write( "5 5 5 15
\n" ); document.write( "5 5 6 16
\n" ); document.write( "5 6 1 12
\n" ); document.write( "5 6 2 13
\n" ); document.write( "5 6 3 14
\n" ); document.write( "5 6 4 15
\n" ); document.write( "5 6 5 16
\n" ); document.write( "5 6 6 17
\n" ); document.write( "6 1 1 8
\n" ); document.write( "6 1 2 9
\n" ); document.write( "6 1 3 10
\n" ); document.write( "6 1 4 11
\n" ); document.write( "6 1 5 12
\n" ); document.write( "6 1 6 13
\n" ); document.write( "6 2 1 9
\n" ); document.write( "6 2 2 10
\n" ); document.write( "6 2 3 11
\n" ); document.write( "6 2 4 12
\n" ); document.write( "6 2 5 13
\n" ); document.write( "6 2 6 14
\n" ); document.write( "6 3 1 10
\n" ); document.write( "6 3 2 11
\n" ); document.write( "6 3 3 12
\n" ); document.write( "6 3 4 13
\n" ); document.write( "6 3 5 14
\n" ); document.write( "6 3 6 15
\n" ); document.write( "6 4 1 11
\n" ); document.write( "6 4 2 12
\n" ); document.write( "6 4 3 13
\n" ); document.write( "6 4 4 14
\n" ); document.write( "6 4 5 15
\n" ); document.write( "6 4 6 16
\n" ); document.write( "6 5 1 12
\n" ); document.write( "6 5 2 13
\n" ); document.write( "6 5 3 14
\n" ); document.write( "6 5 4 15
\n" ); document.write( "6 5 5 16
\n" ); document.write( "6 5 6 17
\n" ); document.write( "6 6 1 13
\n" ); document.write( "6 6 2 14
\n" ); document.write( "6 6 3 15
\n" ); document.write( "6 6 4 16
\n" ); document.write( "6 6 5 17
\n" ); document.write( "6 6 6 18
\n" ); document.write( "So then adding up the possible outcomes from 3 to 18.
\n" ); document.write( "3 1
\n" ); document.write( "4 3
\n" ); document.write( "5 6
\n" ); document.write( "6 10
\n" ); document.write( "7 15
\n" ); document.write( "8 21
\n" ); document.write( "9 25
\n" ); document.write( "10 27
\n" ); document.write( "11 27
\n" ); document.write( "12 25
\n" ); document.write( "13 21
\n" ); document.write( "14 15
\n" ); document.write( "15 10
\n" ); document.write( "16 6
\n" ); document.write( "17 3
\n" ); document.write( "18 1
\n" ); document.write( "and then dividing the outcomes by the total number of outcomes,
\n" ); document.write( "3 0.0046
\n" ); document.write( "4 0.0139
\n" ); document.write( "5 0.0278
\n" ); document.write( "6 0.0463
\n" ); document.write( "7 0.0694
\n" ); document.write( "8 0.0972
\n" ); document.write( "9 0.1157
\n" ); document.write( "10 0.1250
\n" ); document.write( "11 0.1250
\n" ); document.write( "12 0.1157
\n" ); document.write( "13 0.0972
\n" ); document.write( "14 0.0694
\n" ); document.write( "15 0.0463
\n" ); document.write( "16 0.0278
\n" ); document.write( "17 0.0139
\n" ); document.write( "18 0.0046\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );