Water Consumption. The paper “Water Poverty in Urban India: A Study of Major Cities” explores water consumption in domestic households. The data collected from a few houses has a normal distribution with mean 105 liters and standard deviation 69.8 liters.

Let x denote liters of water consumed.

a. Determine the percentage of houses that consume between 50 liters and 100 liters of water.

b. Determine the percentage of houses that consume less than 200 liters.

c. Obtain and interpret the 40th percentile for the consumption.

d. Find and interpret the 8th decile for the consumption.