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The following problem refers to strings in A, B, ..., Z.
How many fourletter strings are there that begin with A ?
 5 months ago
 5 months ago
The following problem refers to strings in A, B, ..., Z. How many fourletter strings are there that begin with A ?
 5 months ago
 5 months ago

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BangkokGarrettBest ResponseYou've already chosen the best response.0
We have to make 3 choices, right? : the 2nd letter, the 3rd letter and the 4th letter. Each choice is independent, so we multiply them. Number of choices for 2nd letter x Number of choices for 3rd letter x Number of choices for 4th letter How many choices do we have for each letter?
 5 months ago

Any1Else2005Best ResponseYou've already chosen the best response.1
Hello BangkokGarrett, basically its a total of the 3 choices, they are basically asking the total number of choices
 5 months ago

BangkokGarrettBest ResponseYou've already chosen the best response.0
I understand the question....I'm just trying to get you to fill in the blank. We have 26 choices for each letter. So the number of 4 letter strings that begin with A will be: 26 x 26 x 26
 5 months ago

Any1Else2005Best ResponseYou've already chosen the best response.1
I'm sorry, for the 3 string its 26^3, so for the 4th string its 26^4? Would that be a safe assumption?
 5 months ago

Any1Else2005Best ResponseYou've already chosen the best response.1
Its 17576, thk you so much sir
 5 months ago
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