The Number of Customers in a Line at a Supermarket

question 36

Multiple Choice

The number of customers in a line at a supermarket express checkout counter is a random variable with the following probability distribution.

$\begin{array} { c | c | c | c | c | c | c } \boldsymbol { x } & 0 & 1 & 2 & 3 & 4 & 5 \\\hline \boldsymbol { P } ( \boldsymbol { x } ) & 0.10 & 0.25 & 0.30 & 0.18 & 0.07 & 0.10\end{array}$

Compute the mean $\mu _ { x ^ { * } }$

• A) 0.36
• B) 2.17
• C) 0.17
• D) 0.43

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Definitions:

Production Processes

The methods and sequences of operations involved in the manufacture or production of goods.

Overt Behavior

Overt behavior refers to observable actions and responses of an individual that can be seen and measured directly by others.

Retained

Kept in possession or memory; not lost or forgotten.

Self-reinforcement

The process by which individuals reward themselves for reaching certain goals or exhibiting desirable behaviors, thus encouraging repeated action.