Question: Could you explain the working for this question? A survey was recently done which explores the relationship between happiness levels and disposable income categories. A

Could you explain the working for this question?

Could you explain the working for this question? A survey was recently

A survey was recently done which explores the relationship between happiness levels and disposable income categories. A total of 9,000 responses were collected. A summary of the data can be found in the table below.

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