Compute the Variance and Standard Deviation of a Discrete Random

question 22

Multiple Choice

Compute the Variance and Standard Deviation of a Discrete Random Variable
-A manager at a local company asked his employees how many times they had given blood in the last year. The results of the survey are given below. The random variable x represents the number of times a person gave blood and P(x) represents the probability of selecting an employee who had given blood that percent of the time. 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) \(2.23\)

Comprehend the assumptions and implications of nursing theories in practice.

Recognize the contributions of historical figures to the development and application of nursing theories.

Understand the application of macroscopic approaches in nursing to influence health policy and community health.

Recognize the importance of critical theoretical perspectives in addressing social determinants of health.

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Definitions:

Sub-Contracting

The practice of a company hiring a third-party to perform tasks, handle operations or provide services that are either difficult to manage or outside the company's expertise.

Discount Rate

The discount rate that is used to compute the present value of forthcoming cash flows.

Annual Payments

Recurring payments made once a year.

Compounded Monthly

Determining interest on a monthly schedule by including both the initial principal and previously earned interest in the calculation.