A Manager at a Local Company Asked His Employees How

question 66

Multiple Choice

A manager at a local company asked his employees how many times they had given blood in the last year. Theresults of the survey are given below. The random variable x represents the number of times a person gaveblood and P(x) represents the probability of selecting an employee who had given blood that percent of thetime. What is the standard deviation for the number of times a person gave blood based on this survey? $$\begin{array} { | c | c | c | c | c | c | c | c | } \hline x & 0 & 1 & 2 & 3 & 4 & 5 & 6 \\\hline P ( x ) & 0.30 & 0.25 & 0.20 & 0.12 & 0.07 & 0.04 & 0.02 \\\hline\end{array}$$

• A) 1.54
• B) 1.82
• C) 1.16
• D) 2.23

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Definitions:

Preventive Approach

Strategic actions taken to avoid potential problems or diseases before they occur.

Aging

The process of becoming older, a series of biological changes that occur in all living organisms over time, often leading to a gradual decrease in physical and sometimes mental capacity.

Discrimination

Unjust or prejudicial treatment of different categories of people, often based on race, age, sex, or disability.

Mental Health Care

The provision of services aimed at promoting psychological well-being and treating mental disorders.