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A computer specialist analyzed the returns on stockholder's equity for all the companies listed in the New York Stock Exchange. He found that the mean of this distribution was 10 percent with a standard deviation of 5 percent. He is interested in examining further those companies whose return on stockholder's equity is between 16 and 22 percent. Of the approximately 1,300 companies listed on the exchange, how many are of interest to him?The length of stay of patients at a certain hospital in Cavite is 3 days with a standard deviation of \"1.5 days. If a patient is selected at random; the probability that hefshe will stay.f in the hospital between 2 to 4 is l '. [Your answer should be roundedoff in 4 decimal places using this format {1.1 234)