The graph below shows the density curve of the incubation period (in days) of a certain Viral disease. This graph shows a point with x-coordinate that I labeled as x on its horizontal axis and the density at any point from 2 to x is 0.1 (and the density is zero everywhere else). What should be the value of x for this to be a density curve? Density 0.1 0 2 2 +x incubation period (in days) to 2 - 2 20 (b) 5 2 2 72 = al (ILY = 2 - 8 10 (d ) 12 SD. - 1.285 (e) None of the other choices gives the correct value of x