genetics statistical analyses

[rainashley]

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i am having trouble understanding statistical analyses with genetics...
for example, when do you add? when do you multiply?
thanks

 

[RogueUnicorn]

multiply when independent events. add when dependent.

it's also probability you're asking about presumably, not statistics.

 

[rainashley]

what do you mean independent? dependent?
please elaborate
yes probability

 

[rainashley]

for example, how would you do this problem using probability (showing work)?
thanks

what percentage of the F1 generation are recombinants if you cross rryy x RrYy?