The following table shows part of the probability distribution for a random variable x. 
a.The mean of the above distribution is known to be 1.8 .
b.Compute the variance and the standard deviation for the above probability distribution.
Definitions:
Achieving Consensus
The process of working towards unanimity in decision-making where all members support the outcome.
Team Leadership Skill
The ability to guide, inspire, and coordinate a group of individuals towards achieving common objectives.
Majority Rule
A decision-making principle where the option that receives the most votes from a group is selected.
Decision Consensus
A group decision-making outcome where all members agree on the chosen course of action, ensuring alignment and commitment among participants.
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