The Number of Cell Phone Minutes Used by High School

question 6

Multiple Choice

The number of cell phone minutes used by high school seniors follows a normal distribution with a mean of 500 and a standard deviation of 50.What is the probability that a student uses between 400 and 500 minutes?

• A)0.4773
• B)0.05228
• C)0.0228
• D)0.9773

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Definitions:

Meninges

The membranes covering the brain and spinal cord.

Influenza

An acute illness characterized by fever, pain, coughing, and general upper respiratory symptoms.

Fever

An elevation in body temperature above the normal range, often a sign of infection or illness.

General Upper Respiratory Symptoms

Non-specific symptoms affecting the upper respiratory tract, including coughing, sneezing, nasal congestion, and sore throat.