o RANDOM VARIABLES AND DISTRIBUTIONS Normal approximation to binomial V Suppose that 16% of the people in a large city have used a hospital emergency room in the past year. If a random samp|_e of 155 people from the city is taken, approximate the probability that more than 21 used an emergency room in the past year. Use the normal approximation to the binomial with a correction for continuity. Round your answer to at least three decimal places. Do not round any intermediate steps. (If necessary, consult a list of formulas.)