garcser257278
26.07.2019 •
Mathematics
Asurvey of 1,108 employees at a software company finds that 621 employees take a bus to work and 445 employees take a train to work. some employees take a bus and a train, and 321 employees only take a train. to the nearest percent, find the probability that a randomly chosen employee takes a bus or a train to work. explain.
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Ответ:
Now, if is the set of employees that take the bus and the set of employees that take the train, then
where is the number of employees belonging to a general set .
So the probability that an employee takes either the bus or train is
Ответ:
i think the answer is d.
step-by-step explanation: