Wednesday

April 16, 2014

April 16, 2014

Posted by **Sherri** on Sunday, September 9, 2007 at 9:58pm.

- Statistics -
**Amanda**, Monday, September 10, 2007 at 12:03am17/36

- Statistics -
**MathGuru**, Monday, September 10, 2007 at 8:41amFind P(0), then take 1 - P(0) for your probability (since the problem says "what is the probability that at least one" is defective). Using the binomial probability function (you can use a binomial probability table as well):

P(x) = (nCx)(p^x)[q^(n-x)]

n = 4

x = 0

p = 17/53 = .32 (note: 53 = 17 + 36)

q = 1 - p = .68

Substituting:

P(0) = (4C0)(.32^0)(.68^4) = .2138

Now, take 1 - .2138 -->this will be your probability.

I hope this helps.

**Related Questions**

statistics - A sample of 4 different calculators is randomly selected from a ...

Math - My question is to get a better understanding of this. Basically, these ...

Statistics - 4 calculators were selected at random from a sample of 44 ...

statistics - a company manufactures calculators in batches of 45 and claims that...

probability - The J.O. Supplies Company buys calculators from a Korean supplier...

Statistics - A box contains 10 items, of which 3 are defective and 7 are non-...

statistics - the j.o supplies company buys calculators from a supplier. The ...

statistics - Suppose that 8% of a certain batch of calculators have a defective ...

probability - hydraulic landing assemblies coming from an aircraft rework ...

Statistics - The average age of chemical engineers is 37 years with a standard ...