The Number of Hours Per Week That High School Seniors

question 9

Multiple Choice

The number of hours per week that high school seniors spend on computers is normally distributed, with a mean of 4 hours and a standard deviation of 2 hours.60 students are chosen at random.Let represent the mean number of hours spent on the computer for this group.Find the probability that is between 4.2 and 4.4.

• A)0.041
• B)0.159
• C)0.317
• D)0.720
• E)0.775

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Definitions:

Dental Visits

Appointments with a dentist for the examination, cleaning, and treatment of teeth and gum conditions to maintain oral health.

Preschool Child

A child who is in the age group that precedes formal schooling, typically aged between 3 to 5 years.

Disposable Bath

A single-use product designed for bathing, often used in healthcare settings for convenience and infection control.

Acute Care

A form of healthcare designed to treat short-term, urgent medical conditions.