The Number of Cell Phone Minutes Used by High School

question 62

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 fewer than 400 minutes?

• A)0
• B)0.023
• C)0.159
• D)0.977
• E)None of the above

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Definitions:

Caffeine

A stimulant compound often found in coffee, tea, and some soft drinks, known for its capacity to enhance alertness and energy levels.

Awake

Not asleep; fully conscious, alert, and aware of one's surroundings.

Similarity

The state or fact of being alike or possessing elements in common, often used to compare and contrast different entities or concepts.

Same Latitude

Describes locations or points that share the same angular distance north or south of the Earth's equator, often measured in degrees.