Find the Standard Deviation of the Poisson Random Variable $\lambda$ = 1860 Let X Denote the Number of Calls Received by to Three

question 142

Multiple Choice

Find the standard deviation of the Poisson random variable. Round to three decimal places.
-The number of calls received by a car towing service in an hour has a Poisson distribution with parameter $\lambda$ = 1.860. Let X denote the number of calls received by the service in a randomly selected
Hour. Find the standard deviation of X.

• A)0.930
• B)1.860
• C)1.364
• D)3.460

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Definitions:

Quality Control Chart

A graphical tool used in process monitoring to analyze and understand variability in production or service delivery.

Defects Per Unit

A measure of the average number of defects found in each unit of a product.

Acceptance Sampling

A statistical quality control method used to decide whether to accept or reject a batch of material based on the inspection of a sample, aiming to ensure product quality while minimizing inspection costs.

LTPD

Lot Tolerance Percent Defective, a statistical measure in quality control that represents the maximum acceptable defect rate for a batch of products.