Children are regularly assessed for their height and weight compared to national data provided by the Centers for Disease Control.Dahlin is somewhat short for his age, and his mother notices on his medical chart that it says Height: z = -1.67.What does this tell Dahlin's mother about his height?
A) 4.75 percent of children are shorter than Dahlin.
B) 45.25 percent of children are shorter than Dahlin.
C) 4.75 percent of children are taller than Dahlin.
D) 45.25 percent of children are taller than Dahlin.

Question

Quizplus · Accepted Answer

The "z" score of -1.67 indicates that Dahlin's height is 1.67 standard deviations below the average height for his age. According to the normal distribution, approximately 4.75% of children fall below this level of height, which means that only 4.75% of children are shorter than Dahlin.

Children Are Regularly Assessed for Their Height and Weight Compared