SOLUTION: Threre are 30 workers on day shift, 50 on sewing shift and 10 on night shift. 6 of these workers are chosen what is the prob. a)All 6 selected are from the same shift b)Atleast

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Question 455428: Threre are 30 workers on day shift, 50 on sewing shift and 10 on night shift. 6 of these workers are chosen what is the prob.
a)All 6 selected are from the same shift
b)Atleast 2 different shifts are represented among the selected workers.

Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
a)
(30C6 + 50C6 + 10C6)/90C6
=.02648
.
Ed