Alphabet Letter
Posted on Wednesday, March 31st, 2010 at 7:27 pmI will form a 3 letter code word using only the first 13 letters of the alphabet allowing no letter to be used
I will form a 3 letter code word using only the first 13 letters of the alphabet allowing no letter to be used only once in any code word. If I select one code word at random find the probabilty that one code word's first two spaces contains the letter F but no vowels.
Please show your work Im lost on how to do this....
number of total combos 13*12*11=1716
number of combos with f as the first letter no vowels
1*(12-3)(11-3)=72
Number of combos with f as the second letter no vowels
(12-3)(1)(11-3)=72
probability = number of combos/total
abcdefghijklm 3 vowels
(72+72)/1716= .0839 or 8.3%
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