The Amount of Time That a Student Brushes His Teeth

question 38

Short Answer

The amount of time that a student brushes his teeth has an approximate normal distribution with a
mean of 1.8 minutes and a standard deviation of 0.3 minutes. What is the probability that the student
brushes his teeth for less than 1.5 minutes? Give your answer as a percentage.

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Definitions:

Gain on Sale

Gain on sale refers to the profit made from selling an asset for more than its book value.

Indirect Method

A method for creating the cash flow statement by modifying net income according to non-cash activities and fluctuations in working capital.

Operating Activities

Activities directly related to the principal revenue-producing activities of an entity, detailed in the cash flow statement.

Amortization

The process of gradually writing off the initial cost of an intangible asset over its useful life, reflecting its consumption, expiration, or obsolescence.