A survey was conducted by a group of stu...

A survey was conducted by a group of students as a part of their environment awareness programme , in which they collected the following data regarding the number of plants in 20 houses in a locality. Find the mean number of plants per house. Number of plants: 0-2 2-4 4-6 6-8 8-10 10-12 12-14 Number of houses: 1 2 1 5 6 2 3 Which method did you use for finding the mean, and why?

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