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The Table Below Is the Probability Table for a Random

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The table below is the probability table for a random variable X. Find the standard deviation of X.  Outcome 1012 Probability 37171727\begin{array} { l | l l l l } \text { Outcome } & - 1 & 0 & 1 & 2 \\\hline \text { Probability } & \frac { 3 } { 7 } & \frac { 1 } { 7 } & \frac { 1 } { 7 } & \frac { 2 } { 7 }\end{array} Enter just a real number rounded off to two decimal places.


Definitions:

Priming

A technique used in psychology and media studies where exposure to certain stimuli influences responses to subsequent related or unrelated stimuli.

Specific Criteria

Explicit standards or requirements set for making decisions or judgments in a particular context.

Evaluating

The process of systematically assessing something to determine its value, impact, or significance.

Fake News

Misinformation or hoaxes spread via traditional news media or online social platforms.

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