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? A probability distribution has the number of hours on the x-axis and the probability on the y-axis. The probability of 6 hours is 0.02; 7 hours is 0.11; 8 hours is 0.61; 9 hours is 0.15; 10 hours is 0.09.