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45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол

In order to be invited to tutoring or extension activities a students performance 20 point higher or lower than average for the