In order to estimate how much water will be needed to supply

In order to estimate how much water will be needed to supply the community of Sitio Mangga in the next decade, the town council asked the city manager to find out how much water a sample of families currently uses. The sample of 10 families used the following number of gallons (in thousands) in the past year as given: 11.2, 21.5, 16.4, 19.7, 14.6, 16.9, 32.2, 18.2, 13.1, 23.8. (a) What is the mean amount of water used per family? The median?. (b) Suppose the town council expects that 10 years from now, there will be 4500 families living in the town. How many gallons of water will be needed annually if the rate of consumption per family stays the same?. (c) Compute the range, variance, standard deviation. (d) Form the box plot and describe the shape.

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