Three reds

What is the probability that when choosing 3 carats from seven carats, all 3 reds will be red?

Correct result:

p =  1.129 %

Solution:

C3(8)=(83)=8!3!(83)!=876321=56  C3(32)=(323)=32!3!(323)!=323130321=4960  p=100 (83)/(323)=100 56/4960=35311.129=1.129%   Verifying Solution:  p1=100 8 7 632 31 30=35311.129 %



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