I for a Normal Probability Distribution, About 95 Percent of the Area

question 100

Multiple Choice

i. For a normal probability distribution, about 95 percent of the area under normal curve is within plus and minus two standard deviations of the mean and practically all (99.73 percent) of the area under the normal curve is within three standard deviations of the mean. ii. The total area under the normal curve is 1.
iii. The mean of a normal probability distribution is 500 and the standard deviation is 10. About 68 percent of the observations lie between 480 and 520.

• A) (i), (ii), and (iii) are all correct statements.
• B) (i) is a correct statement but not (ii) or (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (i) and (ii) are correct statements but not (iii).
• E) (i), (ii), and (iii) are all false statements.

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Definitions:

Double Taxation

The imposition of two separate taxes on the same asset, income, or financial transaction, often seen when corporate earnings are taxed both at the corporate level and again when distributed as dividends to shareholders.

Corporation

A legal entity recognized by law as separate from its owners, with its own rights, responsibilities, and liabilities.

Going-concern Assumption

An accounting principle that assumes a business will continue to operate indefinitely, rather than being liquidated.