Seudónimo Seudónimo

19-10-2016
Mathematics

contestada

You have 2 questions left on a test and you guess them both. What is the probability that you will get AT LEAST 1 right?

Respuesta :

apologiabiology apologiabiology

19-10-2016

probabity=desired outcomes/total possible outcomes

so we can list them
w=wrong
r=right
wr
rw
ww
rr
4 choices
3 choices have at least 1 right
3/4 is answer

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