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OpenStudy (anonymous):
Find the expected number of heads.
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OpenStudy (anonymous):
OpenStudy (anonymous):
Find the expected number of heads. 1.1 2.2 0.6 1.5
OpenStudy (math&ing001):
Add the possibilities multiplied by their probability: 0 or 1 or 2 or 3 0*1/8 + 1*3/8 + 2*3/8 + 3*1/8 = ...
OpenStudy (anonymous):
hmm
OpenStudy (anonymous):
@paki
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