SCENARIO 6-6 According to Investment Digest,the Arithmetic Mean of the Annual Return

question 143

Short Answer

SCENARIO 6-6
According to Investment Digest,the arithmetic mean of the annual return for common stocks over an 85-year period was 9.5% but the value of the variance was not mentioned.Also 25% of the annual returns were below 8% while 65% of the annual returns were between 8% and 11.5%.The article claimed that the distribution of annual return for common stocks was bell-shaped and approximately symmetric.Assume that this distribution is normal with the mean given above.Answer the following questions without the help of a calculator,statistical software or statistical table.
-Referring to Scenario 6-6,75% of the annual returns will be lower than what value?

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Definitions:

Gross Profit

The difference between revenue and the cost of goods sold before accounting for other expenses.

Intra-Entity Sales

Transactions of goods, services, or assets between divisions within the same organization.

Significant Influence

The capacity to affect the financial and operating policies of another entity without having control or full ownership, often through ownership of a sizable percentage of voting shares.

Net Income

The net profit figure for a company, achieved by subtracting all operational costs and tax liabilities from its revenue.