Help. I don’t understand this

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

Which of the following is the graph of y= square root -x-3

Interpret the following expression (5y^2-7)^3/(2y)^2