# Question: We ve all been stopped by traffic at times and have

We’ve all been stopped by traffic at times and have had to sit there while freeway traffic has slowed to a crawl. If you have someone with you (or some good music), the experience may be easier to put up with, but what does traffic congestion cost society? Consider the data presented in Table 5.5.5, grouping all data together as a single univariate data set.

a. Summarize the congestion costs for all these cities by finding the average.

b. Summarize the variation in congestion costs from one city to another using the standard deviation. You may view this data set as a population consisting of all available information.

c. Draw a histogram of this data set. Indicate the average and standard deviation on this graph.

d. Write a paragraph summarizing what you have learned from examining and summarizing this data set.

QUESTION CONTINUES ON NEXT PAG…..

a. Summarize the congestion costs for all these cities by finding the average.

b. Summarize the variation in congestion costs from one city to another using the standard deviation. You may view this data set as a population consisting of all available information.

c. Draw a histogram of this data set. Indicate the average and standard deviation on this graph.

d. Write a paragraph summarizing what you have learned from examining and summarizing this data set.

QUESTION CONTINUES ON NEXT PAG…..

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