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OpenStudy (anonymous):
Suppose a compact disk has 13 tracks, of which you like 4 tracks. One randomly selected song is played each time for 5 times (with replacement). What's probability I like 2 songs (It says to use the binomial probability formula)
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OpenStudy (anonymous):
Some one help, I'm confused
OpenStudy (anonymous):
@perl
OpenStudy (anonymous):
@perl
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