If years B. C. are represented by negative numbers and years A. D. by positive numbers, how many years are there from 40 B. C. to 4 B. C.

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? 0.62 0.78 0.84 0.96