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**NEKA****Member**- Registered: 2006-01-02
- Posts: 9

The Department of Commerce,Bureau of the Census,reported the following

information on the number of wage earners in more than 56 million

American homes.

Number of Earners Number (in thousands)

0 7,083

1 18,621

2 22,414

3 5,533

4 or more 2,797

a.What is the median number of wage earners per home?

b.What is the modal number of wage earners per home?

c.Explain why you cannot compute the mean number of wage earners per

home.

Hint - the data above is an example of grouped data.

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**NEKA****Member**- Registered: 2006-01-02
- Posts: 9

Hi i am new in this forum and i am having some probelms with statistics. Can anyone please help?

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**John E. Franklin****Member**- Registered: 2005-08-29
- Posts: 3,582

I'm just guessing, but I think for question "c." you can't take an average because when you want to multiply by 4 or more, what number do you pick 4.3, 4.2, 4.1, or 4, etc. I would call the formula a weighted average.

( 0 x 7083 ) + (1 x 18621) + (2 x 22414) + (3 x 5533) + (4 or more times 2797)

____________________________________________________________________

(7083 + 18621 + 22414 + 5533 + 2797)

That horizontal line is the divide by sign. It's a fraction.

**igloo** **myrtilles** **fourmis**

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