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 10-2
4-6
8-10 10-12 12-14
6-8
Number of houses
1
2.
فيفا
1
5
6
2
Which method did you use for finding the mean, and why?
2. 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
8.
6
10
Find the mean daily wages of the workers of the factory by using an appropriate method.
3. The following distribution shows the daily pocket allowance of children of a locality.
The mean pocket allowance is * 18. Find the missing frequency f.
11-13 13-15 15-17 | 17-19-19-21
21-23
23-25
Daily pocket
allowance (in)
Number of children
7
6
9
13
5
4​

Answer 1

Answer:

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