An experimeoter publishing in the Amals or Botany lavestigated whether the stem diameters of the dicot suntlower would change depencing on ahecher the plant vas ien to seay treely in the wind or was artifially supported. Suppese that the unsupported thein dianeters at the bate of a particular species of funflower plant have a normal distribution with an average diameter of as milimetret. (min) and a stendard devistion of 3mm. (a) What is the probobility that a suntlower plant will hove a stern diameter of more than 39mm? (Rened your answer to four decimat plscess). (0) if two sunfloner plants are fandsmly selected, what is the probabiaty that both plants will have a stem diameter of more than 39 mm? (hlound vour aniwer io four ifeimal iliset.) (c) Wehin what tmits would pou erpect the stem dameters to ke, with probatiaty o.s5? (hound your answers to two decimal niaces.) loser limit upper limat mm Lai what diameter represents the aoth perceneile of the distribution of diameters? (Alouns your answer to two decmat places.).