Math- look at the picture below

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

If wxyz is a square, which statements must be true?

Write each rational number in the form a/b, where a and b are integers. 1. 5 1/6 2. -12