The Life (In Hours)of Light Bulbs of a Certain Brand

question 2

Multiple Choice

The life (in hours) of light bulbs of a certain brand is normally distributed with mean 1000 and standard deviation 100.What percentage of such bulbs will burn more than 950 hours?

• A) 40.95
• B) 72.15
• C) 68.34
• D) 65.54
• E) 69.15

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Definitions:

Administrative Tribunal

An administrative tribunal is a government body responsible for resolving disputes, making decisions on regulatory or administrative matters, often in specialized areas such as labor, immigration, or social services.

Charter Supervision

The regulation and oversight of organizations or bodies by a chartering authority to ensure compliance with standards and laws.

Natural Justice

Fundamental procedural legal principles ensuring fairness in the resolution of disputes, including the rights to a fair hearing and an unbiased decision.

Decision

A conclusion or resolution reached after consideration by an individual or authoritative body, especially in a legal context.