Find the Standard Deviation $\sigma$ For the Following Probability Distribution A)2800
B)1

question 54

Multiple Choice

Find the standard deviation $\sigma$ for the following probability distribution. Round your answer to three decimal places. $$\begin{array} { l l l l c c } x & 1 & 2 & 3 & 4 & 5 \\P ( x ) & \frac { 2 } { 5 } & \frac { 1 } { 10 } & \frac { 1 } { 10 } & \frac { 1 } { 10 } & \frac { 3 } { 10 }\end{array}$$

• A)2.800
• B)1.720
• C)8.762
• D)2.960
• E)1.673

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Definitions:

Terminal Buttons

The small knoblike structures at the end of an axon that release neurotransmitters to send signals to other neurons.

Neurotransmitters

Chemical substances in the nervous system that transmit signals across a synapse from one neuron to another, influencing both mental and physical functions.

Neuron

A neuron is a specialized cell transmitting nerve impulses; a nerve cell, the fundamental unit of the nervous system responsible for receiving and sending electrical signals throughout the body.

Cerebral Spinal Fluid

A clear, colorless body fluid found in the brain and spinal cord, which acts as a cushion for the brain's cortex, providing basic mechanical and immunological protection to the brain inside the skull.