An Alarm Company Reports That the Number of Alarms Sent $\lambda = 4.7$

question 75

Multiple Choice

An alarm company reports that the number of alarms sent to their monitoring center from customers owning their system follow a Poisson distribution with $\lambda = 4.7$ alarms per year. Identify the mean and standard deviation for this distribution.

• A) mean \(= 2.17\), standard Deviation \(= 4.7\)
• B) mean \(= 4.7\), standard Deviation \(= 4.7\)
• C) mean \(= 2.17\), standard Deviation \(= 2.17\)
• D) mean \(= 4.7\), standard Deviation \(= 2.17\)

---

Definitions:

Paradigm Shifts

Signifies fundamental changes in the basic concepts and experimental practices of a scientific discipline or other systematic pursuit.

Quantitative Research

Research that translates the social world into numbers that can be treated mathematically; this type of research often tries to find cause-and-effect relationships.

Qualitative Research

A research strategy focusing on understanding the nature of human behavior and the reasons that govern such behavior, utilizing methods like interviews and observations that provide depth and context.

Experimental Research

A systematic and scientific approach to research in which the researcher manipulates one or more variables, and controls and measures any change in other variables.