A survey was conducted by a group of students as a part of their environment…

MATHEMATICS · Multi-part · CBSE · Mathematics · Statistics · Statistics

Problem

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? (1) Find the mean number of plants per house. (2) Which method did you use for finding the mean, and why?

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