The Number of Hours Per Week That High School Students

question 27

Multiple Choice

The number of hours per week that high school students spend on homework is normally distributed,with a mean of 12 hours and a standard deviation of 3 hours.50 students are chosen at random.Let
Represent the mean number of hours spent on homework for this group.Find the probability that
Is between 10.8 and 13.0.

• A)0.0078
• B)0.286
• C)0.9886
• D)0.4711
• E)0.0143

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Definitions:

Supply

The total amount of a product or service that is available for purchase at any given price.

Labor Union

A collective organization of employees who bargain as a unit with employers.

Autoworkers

Employees in the automotive industry who are involved in the design, development, manufacturing, marketing, and selling of motor vehicles.

Automobiles

Motor vehicles with four wheels designed primarily for passenger transportation on roads.