Use the Following to Answer the Question(s) Below

question 28

Multiple Choice

Use the following to answer the question(s) below.
IT staff for a large corporation has developed the following probability distribution for the number of calls requiring troubleshooting problems per day.
Number of Calls Probability
0 0.32
1 0.35
2 0.18
3 0.10
4 0.05
-The standard deviation in the number of calls per day is

• A) 1.31
• B) 1.14
• C) 2.77
• D) 1.56
• E) 1.21

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Definitions:

High-intensity Discharge (HID)

A type of lighting technology that produces light by passing an electrical charge through a gas, often used in automotive headlights.

Fluorescent

Relating to the emission of light by a substance that has absorbed light or other electromagnetic radiation of a different wavelength.

Halogen Insert Bulb

A type of light bulb that uses halogen gas to increase light output and efficiency compared to traditional incandescent bulbs.

Tire Pressure Monitoring Systems (TPMSs)

Electronic systems designed to monitor the air pressure inside the pneumatic tires on various types of vehicles, alerting the driver when tire pressure is low.