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jarptica [38.1K]
3 years ago
9

The human resources manager at a company records the length, in hours, of one shift at work, X. He crests the probability distri

bution below. What is the probability that a worker chosen at random works at least 8 hours?
Mathematics
1 answer:
Ahat [919]3 years ago
5 0
Hello!

The words at least means that the worker needs to work 8, 9 or 10 hours. We can add probabilities, so we will add .6 (for those working 8 hours), .15 (for those working 9 hours) and .08 (for those working 10 hours) to get a total probability of .83.
Hope this helps!
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