by Ken Lund
Question by loope: statistics?
safety engineers must determine whether industrial workers can operate a machine's emergency shutoff device. among a group of test subjects, 66% were successful with their left hands, 82% w/ thier right hand, 51% w/ both.
a) what % of these workers could not operate the swithch with their hand
b) are success with right and left hands independent events?
c. are sucess w/ right and left hands mutually exclusive.
2. in the US, the probablilty of
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