shown above is the graph of a differentiable function F along with the line tangent to the graph of F at X=3. what is the value of f’3? please hurry

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