Data was collected on the industrial energy consumption per capita (in million BTUs) for all the states. A summary of the data is shown in the following table. 

a. What percentage of the states consumed fewer than 47.1 million BTUs per capita?
b. What percentage of the states consumed fewer than 143.1 million BTUs per capita?
c. Complete this sentence: 50% of the states consumed more than ___ million BTUs per capita.
d. Is there more variability in Total Energy Consumption or in Industrial Energy Consumption for the states? (See problem 3.47 for data on total energy consumption.)

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Summary statistics: Column Min Q1 Median Q3 Мах Industrial BTU 10.4 47.1 91.2 143.1 634.8