write at least two questions to find the mean giving suitable data
Answers
Question1.A survey was conducted by 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, why?
Question2.Consider the following distribution of daily wages of 50 workers a factory.
Daily wages(in Rs) 100-120 120-140 140-160 160-180 180-200
Number of houses 12 14 8 6 10
Find the mean daily wages of the workers of the factory by using appropriate method