Question

EXERCISE 14.1
. 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
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?
Consider the following distribution of daily wages of 50 workers of a factory.
Daily wages (in)
500-520
520-540
540-560
560-580
580-600
Number of workers
12
14
8
6
10
Find the mean daily wages of the workers of the factory by using an appropriate method,
The following distribution shows the daily pocket allowance of children of a locality.
The mean pocket allowance is Rs 18. Find the missing frequency f.​

Answer 1

Answer:

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