What Is the probability of a couple have the same 2 initials (from first and last name) ?

how many ways can they have identical initials?

how many total combinations of 2 pairs of initials are there?

divide the first by the second
 
No. I don't think it's that simple considering that there are many more first and last names that start with "B" that "Z" etc. Each letter does not carry the same weight.
 
Qcan said:
No. I don't think it's that simple considering that there are many more first and last names that start with "B" that "Z" etc. Each letter does not carry the same weight.
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Yes.. you are undoubtedly correct. I don't suppose you have those probabilities available do you? Neither do I/we.
 
Qcan said:
What Is the probability of a couple have the same 2 initials (from first and last name) ?

The specific initials in question would be K.B.
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This is not a mathematical question, but one that has to be answered by collecting data. In particular, it will depend on the population under consideration, and whether couples are expected to share the same last name, and so on.

Moreover, the meaning of the question changes when you move from the general probability of having the same initials, to specifying what they are!
 
Romsek said:
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Yes.. you are undoubtedly correct. I don't suppose you have those probabilities available do you? Neither do I/we.
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I think you underestimate some of the helpers here. I actually walk around know all those probabilities and even in 17 different languages. I thought everyone knew these numbers. ;)
 
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