find the mean of the distribution by assumed mean method 1-10 11-20 21-30 31-40 41-50 51-60. 16 10 25 20 12 15
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Hydroelectricity, or hydroelectric power, is electricity produced from hydropower. In 2015, hydropower generated 16.6% of the world's total electricity and 70% of all renewable electricity, and was expected to increase by about 3.1% each year for the next 25 years.
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