Sources of Energy Use A breakdown of the sources of energy used in a country is shown below. Natural Gas 27% Coal 22% Nuclear 7% Hydropower 3% Oil 38% Other 3% Send data to Excel Choose one energy source at random. Find the probabilities of the following. Enter your answers as decimals rounded to 2 decimal places. Part 1 of. 3 (a) Not natural gas P (Not natural gas) = X Part 2 of 3 (b) Coal or natural gas P (Coal or natural gas) = X