Question

1. 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?​

Answer 1

Therefore, the mean number of plants per house is 8.1

I used normal mean method because the xi and fi values are small ,it is easy to multiply.

Answer 2

This sum is solve by direct formula

x=8.1

Make me a brainlist.............