probability
posted by lisa .
A company's records indicate that on any given day, 1% of their day shift
employees and 2% of the night shift employees will miss work. Sixty percent of the employees
work the day shift.
a. What percent of employees are absent on any given day?
b. A randomly selected employee missed work today, what is the probability that he/she
is a night shift employee?
i don't even know where to start

percent=.01*.6 + .02*.4
.02*.4/(.02*.4+.01*.6)
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