Which of the Following Is Correct

question 110

Multiple Choice

Which of the following is correct?

• A) A continuous random variable has a probability density function but not a cumulative distribution function.
• B) A discrete random variable has a probability mass function but not a cumulative distribution function.
• C) A continuous random variable has a probability mass function, and a discrete random variable has a probability density function.
• D) A continuous random variable has a probability density function, and a discrete random variable has a probability mass function.

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Definitions:

Action Potential

A rapid rise and subsequent fall in voltage or membrane potential across a cellular membrane, vital for nerve impulse transmission.

Synaptic Vesicles

Small sacs within a neuron that store neurotransmitters, which are chemicals that transmit signals across synapses.

Synaptic Knob

The bulbous end of a presynaptic neuron's axon terminal that houses neurotransmitters and is responsible for transmitting signals to other neurons at the synapse.

Synapse

The junction between two neurons, which allows for the transmission of electrical or chemical signals.