The Average Score of 100 Students Taking a Statistics Final

question 13

Multiple Choice

The average score of 100 students taking a statistics final was 70,with a standard deviation of 7. Assuming a normal distribution,what is the probability that a student scored 90 or higher?

• A)0.4979
• B)0.0021
• C)0.9979
• D)2.86

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Definitions:

Depreciation

The systematic reduction of the recorded cost of a fixed asset to reflect its loss in value over time, often due to wear and tear or obsolescence.

Net Income

The total earnings of a company after subtracting all expenses, taxes, and costs, reflecting the actual profit made.