Question

Find the mean of the data given in the following table
Class
10-20 20 – 40 40 - 60
Frequency
​

Answer 1

Step-by-step explanation:

Green revolution refers to the introduction of High yielding variety (HYV) of seeds and increased use of fertilizer and irrigation methods. It took place during the 1960s especially 1965onwards. It was aimed at providing increase in production to make India self-sufficient in food grains.