Posted by **I love math & science !** on Friday, July 14, 2006 at 6:50pm.

4 calculators were selected at random from a sample of 44 calculators that were defective and 22 that were in good condition. Find the probability that all 4 calculators are defective.

Ok, I'll just start this one. There are

66 choose 4 samples. yes/no?

What is the P of 0,1,2,3,4 defecives in a sample? You need to caluclate these. I wouldn't be surprised if there's a sample or formula for this problem in your text. Look there first.

Looks like my observation skills are sliding. You only want to know the P that all of them are defects. So I don't think you should need to do as much calculating as I thought.

## Answer This Question

## Related Questions

- probability - The J.O. Supplies Company buys calculators from a Korean supplier...
- statistics - A sample of 4 different calculators is randomly selected from a ...
- Statistics - A sample of 4 different calculators is randomly selected from a ...
- statistics - the j.o supplies company buys calculators from a supplier. The ...
- Math - An electronic store receives a shipment of 30 graphing calculators, ...
- Math - My question is to get a better understanding of this. Basically, these ...
- math - In a shipment of 50 calculators,4 are defective. Two calculators are ...
- statistics - Suppose that 8% of a certain batch of calculators have a defective ...
- statistics - a company manufactures calculators in batches of 45 and claims that...
- Stats - Suppose that 8% of a certain batch of calculators have a defective case...

More Related Questions