Exhibit 12-6 The Owner of a Car Wash Wants to See If

question 56

Multiple Choice

Exhibit 12-6
The owner of a car wash wants to see if the arrival rate of cars follows a Poisson distribution. In order to test the assumption of a Poisson distribution, a random sample of 150 ten-minute intervals was taken. You are given the following observed frequencies:
-Refer to Exhibit 12-6. The expected frequency of exactly 3 cars arriving in a 10-minute interval is

• A)0.1533
• B)0.1743
• C)23
• D)26.145

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Definitions:

Pressure Injury

Localized damage to the skin and/or underlying tissue that usually occurs over a bony prominence as a result of pressure, or pressure in combination with shear.

Low-air-loss Therapy

A medical treatment involving the use of specialized mattresses that support the body through streams of air, reducing pressure on the skin and aiding in wound healing.

Plastic Surgery

A medical specialty involving the correction or restoration of form and function, encompassing both cosmetic surgery for aesthetic improvement and reconstructive surgery for treating injuries or deformities.

Tissue Perfusion

The process of delivering blood to a capillary bed in the body's tissues, critical for delivering oxygen and nutrients.