180 furniture factories have the following distribution of average number of workers in various income groups: 1000 - 1200 1200 – 1400 1400 – 1600 1600 – 1800 Income Groups: Number of firms: 800 - 1000 45 37 27 30 41 Average Number of 12 16 6 9 7 Workers: Find the mean salary paid to the workers.

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Author:Amos Gilat
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180 furniture factories have the following distribution of average number of workers in various
income groups:
Income Groups:
800 - 1000
1000 - 1200
1200 – 1400
1400 – 1600
1600 – 1800
Number of firms:
45
37
27
30
41
Average Number of
12
16
6
7
Workers:
Find the mean salary paid to the workers.
Transcribed Image Text:180 furniture factories have the following distribution of average number of workers in various income groups: Income Groups: 800 - 1000 1000 - 1200 1200 – 1400 1400 – 1600 1600 – 1800 Number of firms: 45 37 27 30 41 Average Number of 12 16 6 7 Workers: Find the mean salary paid to the workers.
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