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:

Office Supplies

Items and equipment used in offices for proper functioning and operations, including stationary, computers, and furniture.

Segment Adoption Percentage

The proportion of a market segment that has adopted or started using a particular product or service.

Purchase Behavior

The actions and decisions that lead consumers to buy products or services, influenced by factors such as personal preferences, social influences, and marketing.

Profit Margin Percentage

A financial metric that measures the amount of net income earned with each dollar of sales by comparing net income and net sales.