Question 935182
P(credit) = 1/3
P(no credit) = 2/3


P(all 3 not getting credit) = (2/3)^3 = 8/27


P(at least one getting credit) = 1 - P(all 3 not getting credit)


P(at least one getting credit) = 1 - 8/27


P(at least one getting credit) = 27/27 - 8/27


P(at least one getting credit) = <font color="red">19/27</font>


------------------------------------------------------------------------------------------------------------------------


If you need more one-on-one help, email me at <a href="mailto:jim_thompson5910@hotmail.com?Subject=I%20Need%20Algebra%20Help">jim_thompson5910@hotmail.com</a>. You can ask me a few more questions for free, but afterwards, I would charge you ($2 a problem to have steps shown or $1 a problem for answer only).


Alternatively, please consider visiting my website: <a href="http://www.freewebs.com/jimthompson5910/home.html">http://www.freewebs.com/jimthompson5910/home.html</a> and making a donation. Any amount is greatly appreciated as it helps me a lot. This donation is to support free tutoring. Thank you.


Jim

------------------------------------------------------------------------------------------------------------------------