Three reds

What is the probability that all three of the seven cards will be red if three cards are drawn?

Correct answer:

p =  1.129 %

Step-by-step explanation:

C3(8)=(38)=3!(83)!8!=321876=56  C3(32)=(332)=3!(323)!32!=321323130=4960  p=100 (38)/(332)=100 56/4960=31351.129%   Verifying Solution:  p1=100 32 31 308 7 6=31351.129 %

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Showing 2 comments:
Math student
This question could be improved by including some basic info about carats.  I thought it was a unit of measure for gemstones, but apparently it's a card game of some kind?  Also, "all three reds will be red" sounds like a tautology.

Dr Math
Yes, we improved spelling. Not carats, but cards ;)

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