(graph photo attached) urgent math which is the best estimate for the value of r in the scatter plot? answer options: a) -1 b) -0.9 c)0.2 d) 1

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