Mathematics, 19.03.2021 22:00 svlext
Anand knows from experience that if he does not review a new vocabulary word that he has learned, that he has a 70% percent chance of forgetting it each day. Let D be the number of days Anand goes without reviewing a word until he forgets it.
Find the probability that it takes Anand 4 or more days to forget the word.
You may round your answer to the nearest hundredth.
P(D\geq 4)=P(D≥4)=P, left parenthesis, D, is greater than or equal to, 4, right parenthesis, equals
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