Question

find mean of the data by assumed method 0-20,20-40,40-60,60-80,80-100,100-120 frequency 8,4,12,6,10,16 ​

Answer 1

Step-by-step explanation:

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.