SOLUTION: On the daily run of an express bus, the average number of passengers is 48. The standard deviation is 3. Assume the variable is normally distributed. Find the probability that the
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Question 687044: On the daily run of an express bus, the average number of passengers is 48. The standard deviation is 3. Assume the variable is normally distributed. Find the probability that the bus will have between 36 and 40 passengers.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
On the daily run of an express bus, the average number of passengers is 48. The standard deviation is 3. Assume the variable is normally distributed. Find the probability that the bus will have between 36 and 40 passengers.
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Find the z-values for 36 and for 40.
Find the probability that z lies between those two z-values.
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Using a TI-84 I get P(36<= x <=40) = 0.0038
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Cheers,
Stan H.
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