The Tru-Green Lawn Company provides yard care services for customers throughout the Denver area. The company owner recently tracked the time his field employees spent at a sample of customer locations. He was hoping to use these data to help him with his scheduling and to establish billing rates. The following sample data, in minutes, were recorded:

Describe the central tendency of these data by computing the mean, median, and mode. Based on these measures, can you conclude that the distribution of time spent at customer locations is skewed or symmetric?

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