# probability

Cruise ships of the Royal Viking line report that 80 percent of their rooms are occupied during September. For a cruise ship having 800 rooms, what is the probability that 665 or more are occupied in September?

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The number of occupied cruise ship, denoted as X, is binomial random variable with n=800, p=0.8, denoted as X~Bin(800,0.8). From the properties of binomial random variable, the mean of X = ...

#### Solution Summary

Calculation of probability is provided.

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