Approximately What Proportion of a Normal Distribution Lies Between the Z

question 37

Multiple Choice

Approximately what proportion of a normal distribution lies between the z scores of +.66 and +1.55?

• A)57%
• B)63%
• C)68%
• D)32%

---

Definitions:

Stepping Reflexes

Automatic walking movements made by infants when held upright with their feet touching a solid surface.

Motor Development

The progression of muscular coordination and the ability to move and control movements.

Swaddled

Wrapped tightly in cloth or a garment, often referring to a method of wrapping infants to restrict movement and provide a sense of security.

Voluntary Reaching

The intentional movement of the arm and hand towards an object of interest, a milestone in motor skill development.