Posted by **Matt** on Tuesday, October 23, 2007 at 5:30pm.

I have no idea where to start?

A survey of one thousand people found that 70% of the people have a

CD player, 85% have a telephone, and 45.2% have a computer. At

least how many people have all three objects?

- Calculus Help? -
**Reiny**, Tuesday, October 23, 2007 at 5:40pm
There is not enough information

If A is "Cd player"

B is "having telephone"

C is "having computer", we have to use the formula

Number(A or B or C)= Number(A) + Number(B) + Number(C) - Number(A and B) - Number(A and C) - Number(B and C) + Number (A and B and C)

What you are asking for is Number (A and B and C)

Can you see which data is missing?

Also do we know of the 1000 people if there are some that don't have either phone, computer or CD??

## Answer This Question

## Related Questions

- Calculus - A survey of one thousand people found that 70% of the people have a ...
- Calculus Check - A survey of one thousand people found that 70% of the people ...
- Calculus Check - A survey of one thousand people found that 70% of the people ...
- Cacluluc CHECK - A survey of one thousand people found that 70% of the people ...
- math - In a survey, 12% of people have no pets, 44% of the people have 1 pet, 16...
- please everyone post opinions. everyone is welcome - is it wise to plan your ...
- english - I have to give the following feedback to this paragraph: (Evaluative, ...
- Statistics - Some IQ scores are standardized with a mean of 100 and a standard ...
- Math_Statistics - Some IQ scores are standardized with a mean of 100 and a ...
- Survey ? - Why should people be informed about teen suicide? ( I need like a ...

More Related Questions