Let the Random Variable Z Follow a Standard Normal Distribution

question 161

Multiple Choice

Let the random variable Z follow a standard normal distribution.Find the value k,such that P(-k < Z < k) = 0.78.

• A)1.78
• B)1.37
• C)1.23
• D)0.78

---

Definitions:

Metabolic Disorder

A group of conditions that occur due to abnormalities in the body's metabolism, leading to health problems.

Tay-Sach's Disease

A genetic disorder characterized by the destruction of nerve cells in the brain and spinal cord, leading to severe neurological impairment, typically diagnosed in infancy.

Hyperammonemia

A medical condition characterized by elevated levels of ammonia in the blood, which can be toxic to the brain.

PKU

Phenylketonuria is a genetic disorder characterized by an inability of the body to process the amino acid phenylalanine, leading to harmful levels in the blood if left untreated.