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October 21, 2014

October 21, 2014

Posted by **Courtney** on Wednesday, December 8, 2010 at 12:16am.

A test is conducted by randomly selecting 14 customers for that airline and observing whether they had lost their baggage. Provide answers to at least 6 decimal places for the following:

(a) The probability that exactly 2 customers lost baggage is .

(b) The probability that at least 12 customers lost baggage is

- Math -
**Reiny**, Wednesday, December 8, 2010 at 8:14amprob of losing = 8/100 = 2/25

prob of not losing it = 23/25

prob(2 out of 14losing it) = C(14,2) (2/25)^2 (23/25)^12 = appr .214

b) prob (at least 12)

= Prob(12) + prob(13) + prob(14)

= C(14,12) (2/25)^12 (23/25)^2 + .....

- Math -
**Courtney**, Thursday, December 9, 2010 at 1:39pmI do not understand the second part how do i get the second part?

- Math -
**A**, Thursday, December 9, 2010 at 6:44pmDoesn't the second part yield a value greater than 1? Isn't probability always supposed to equal 1?

- Math -
**courtney**, Thursday, December 9, 2010 at 6:57pmi have no clue honestly i tried doing the second part B and i do not get it?

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