1.

An experiment succeeds twice as often as it fails. Find the probability that in 4 trials there will be at least three success [AMU 1999]

A. \[\frac{4}{27}\]
B. \[\frac{8}{27}\]
C. \[\frac{16}{27}\]
D. \[\frac{24}{27}\]
Answer» D. \[\frac{24}{27}\]


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