In healthy children age 5 to 15 years, the left atrial (uppe…
In healthy children age 5 to 15 years, the left atrial (upper) chamber of the heart has a diameter which is approximately normally distributed with a mean of 26.4 mm and standard deviation of 4.2 mm. Carlos is 10 years old, and his left atrial chamber has a diameter with a z-score of 2.00. What does this mean in context?