In a survey, it was found that 62% of adults operate the flusher of toilets in public restrooms with their foot. (a) If 400 adults are randomly selected, how many would we expect to flush toilets in public restrooms with their foot? b) Would it be unusual to observe 360 adults who flush toilets in public restrooms with their foot? (a) We would expect adults to flush toilets in public restrooms with their foot. (Type a whole number.)