sonjaburton sonjaburton
  • 25-07-2021
  • Mathematics
contestada

box contains 12 ​transistors, 3 of which are defective. If 3 are selected at​ random, find the probability of the statements below.

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thechiaratorrente thechiaratorrente
  • 25-07-2021

# of ways to select 3 defective:: 3C3 = 1
----
# of random sets of 3:: 12C3 = (12*11*10)/(1*2*3) = 220
----
P(3 defective) = 1/220
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