Find the Expected Value and Standard Deviation of a Random

question 18

Multiple Choice

Find the expected value and standard deviation of a random variable.
-A small business just leased a new computer and color laser printer for three years.
The service contract for the computer offers unlimited repairs for a fee of $100 a year
Plus a $25 service charge for each repair needed. The company's research indicates that
During a given year 86% of these computers need no repairs, 9% need to be repaired
Once, 4% twice, 1% three times, and none required more than three repairs. The standard
Deviation in the number of repairs for this kind of computer per year is

• A) 0.20 repairs.
• B) 0.55 repairs.
• C) 0.89 repairs.
• D) 1.00 repairs.
• E) 1.20 repairs.

Understanding the concept of nonverbal communication and its characteristics.

Recognizing the ambiguity and challenges in interpreting nonverbal messages.

Identifying various nonverbal cues and their functions in interpersonal communication.

Differentiating between verbal and nonverbal aspects of communication.

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Definitions:

Function Procedure

A block of code within programming that performs a specific task and can return a value, used to modularize and simplify coding.

Query

A request for information from a database, specifying criteria to select and retrieve data.

Global Code

Code that is accessible from any point within the scope of an application, not limited by local context.

Standard Modules

Reusable blocks of code in a programming environment that perform a particular function and can be incorporated into applications.