QUESTION 1 Let be the proportions of time in a working day that employees and, respectively, actually spend doing their assigned tasks. The behavior of the joint relative frequencies is represented by: (x+xy+y) f(x,y) 0 0 x 1 0 y 1 eoc a. On what percentage of the days worked did A work less than half the time and B work more than a quarter of the time? b. Is there a linear correlation between the proportion of time worked by employee A in a work day and the same variable observed in employee B? c. Determine the average work rate for employee A if employee B worked exactly one fourth of the time.