During the winter, 42% of the patients of a walk-in clinic c…

During the winter, 42% of the patients of a walk-in clinic come because of symptoms of the common cold or flu. a) What is the probability that, of the 32 patients on one winter morning, exactly 10 had symptoms of the common cold or flu?  (2 marks) b) What is the expected number of patients who have symptoms of the common cold or flu?   (1 mark)