The population of 50 villages in a state is given below:
`{:("Population","Number of villages"),(" "6000," "8),(" "7000," "10),(" "9000," "12),(" "10000," "5),(" "11000," "7),(" "13000," "6),(" "15000," "2),(" ""Total"," "50):}`
Find the mean population of the villages of the state.