Use the following to answer questions :
The following table gives the cumulative frequency distribution of annual incomes (in thousands of dollars)for a sample of 200 families selected from a city.

-The number of families with an income of $40,000 or less is:

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Use the following to answer questions :
The following table gives the cumulative frequency distribution of annual incomes (in thousands of dollars)for a sample of 200 families selected from a city.
 
-The number of families with an income of $40,000 or less is:

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The Answer of Use the following to answer questions :
The following table gives the cumulative frequency distribution of annual incomes (in thousands of dollars)for a sample of 200 families selected from a city.
 
-The number of families with an income of $40,000 or less is:

Use the Following to Answer Questions