Question
In: Statistics and Probability
An airlines reports that 70% of their seats are sold for flights that are scheduled during...
An airlines reports that 70% of their seats are sold for flights that are scheduled during the month of November for a particular route. If their plane has 120 seats, what is the probability that 100 or more seats are sold for November?
Solutions
Expert Solution
p = 0.7
n = 120
µ = n * p = 120 * 0.7 = 84
sd = sqrt(n * p * (1 - p)) = sqrt(120 * 0.7 * 0.3) = 5.02
= P(Z > 3.09)
= 1 - P(Z < 3.09)
= 1 - 0.9990
= 0.001
orchestra answered 1 year agoRelated Solutions
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