Jo Is a Hairstylist What Is the Standard Deviation of the Number of Clients

question 193

Multiple Choice

Jo is a hairstylist.The probability model below describes the number of clients that she may see in a day. $$\begin{array} { l | c c c c c c } \text { Number of clients } & 0 & 1 & 2 & 3 & 4 & 5 \\\hline \text { Probability } & 0.05 & 0.15 & 0.15 & 0.3 & 0.2 & 0.15\end{array}$$ What is the standard deviation of the number of clients that Jo sees per day?

• A)1.31
• B)1.41
• C)2.19
• D)1.99
• E)1.55

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Definitions:

Charter

A formal document outlining the rights, objectives, rules, strategies, or functions of a city, organization, or other entity.

Demonstrably Justified

Clearly supported or proven to be reasonable or necessary under the circumstances.

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A type of society where individuals have the liberty to express their opinions, enjoy rights and freedoms, and participate in fair and open elections to choose their leaders.

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