Corbin is concerned about the amount of sodium in breakfast cereal. After examining labels from a random sample of cereal brands, he discovers that the amount of sodium in breakfast cereal is approximately normally distributed with a mean of milligrams sodium per gram of cereal and a standard deviation of mg/g. Corbin has listed his three favorite cereals and their sodium content below and wants to know how they compare to the population of breakfast cereals as a whole. For each cereal listed below, find its sodium content percentile and provide Corbin an explanation of what each percentile means.

An 80-year-old woman comes to the urgent care clinic with dyspnoea on exertion. on physical examination, her blood pressure is 100/70, and her pulse is 75. she has no pulsus paradoxus. her jugular veins are distended, and she has distant heart sounds. in addition, she has extra third and fourth heart sounds. her liver is enlarged, and she has pedal oedema. she has occasional premature ventricular contractions on her electrocardiogram. a chest x-ray reveals clear lung fields with a dilated cardiac silhouette. her echocardiogram reveals ventricular walls with a "speckled pattern". which of the following is the most likely diagnosis? - alcoholic cardiomyopathy- amyloidosis- haemochromatosis- tuberculosis- viral myocarditis