The council decides to take a stratified sample of size 60....

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James38264

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Number of Bedrooms 1- Frequency 642 Number of bedrooms 2- Frequency 1428 Number of bedrooms 3- Frequency 1718 Number of Bedrooms 4- Frequency 301. More than 4 rooms- Frequency 7. The town council wants to find out information about how much household waste is produced in a week by houses with different numbers of Bedrooms. It decideds to take a stratified sample of size 60. The total amount of household waste produced in a year by the houses with 3 bedrooms in the sample was 28 tonnes. Work out an estimate for the total amount of household waste produced in a year by the houses with 3 bedrooms in the town. Thanks:)
 
James38264 said:
Number of Bedrooms 1- Frequency 642 Number of bedrooms 2- Frequency 1428 Number of bedrooms 3- Frequency 1718 Number of Bedrooms 4- Frequency 301. More than 4 rooms- Frequency 7. The town council wants to find out information about how much household waste is produced in a week by houses with different numbers of Bedrooms. It decideds to take a stratified sample of size 60. The total amount of household waste produced in a year by the houses with 3 bedrooms in the sample was 28 tonnes. Work out an estimate for the total amount of household waste produced in a year by the houses with 3 bedrooms in the town. Thanks:)
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When you show us your work, be sure to make clear what a "stratified sample" is. Perhaps that is all you need to know to solve the problem.
 
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