When a spinner is spun, the outcome is 1 of 3 colours green blue or red ...
guru2009 (Not rated)
(Not rated)
When a spinner is spun, the outcome is 1 of 3 colours green blue or red. On any of the spins, the probability of those outcomes, PG PB AND PR respectively. Note that PG+PB+PR=1. If the spinner is spun n times, what is the probability there is at least one blue out come and one green outcome in the n spins?
8 years ago
Let X = There is no blue in n spins ...
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