Z Is a Standard Normal Random Variable

question 20

Multiple Choice

z is a standard normal random variable. The P(z ≥ 2.11) equals

• A) 0.4821.
• B) 0.9821.
• C) 0.5.
• D) 0.0174.

---

Definitions:

Axon

is a long, slender projection of a nerve cell that conducts electrical impulses away from the neuron's cell body.

Neurotransmitters

Chemical messengers that transmit signals across the synaptic space from one neuron to another in the brain.

Neural Impulse

An electrical signal that travels along the axon of a neuron, transmitting information between neurons or from neurons to muscles.

Spinal Cord

The long, thin, tubular structure made up of nervous tissue, which extends from the medulla oblongata in the brainstem to the lumbar region of the vertebral column, acting as the principal pathway for transmitting information between the brain and the rest of the body.