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Data from medical records show that 60% of adults will develop a hiatus hernia which is the protrusion of the upper stomach through an opening in the diaphragm. A random group of 6 adults is selected. 18. What is the probability that exactly 3 out of these 6 will develop a hiatus hernia? 0.23 0.32 0.21 0.35 ppm? 19. What is the probability that at least 2 out of these 6 adults will develop a hiatus hernia? 0.99 0.96 0.91 0.89 9.0.00.3