# Question: At a small rural airport the number of arrivals per

At a small rural airport, the number of arrivals per hour during the day has the distribution shown. Find the mean, variance, and standard deviation for the data.

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What are the characteristics of a normal distribution? Between z = 1.23 and z = 1.90 Find the area under the standard normal distribution curve. To the left of z = 2.11 Find the area under the standard normal distribution curve. P (– 1.43 < z < 0) Find the probabilities for each, using the standard normal distribution. P (z > –1.43) Find the probabilities for each, using the standard normal distribution.Post your question