TABLE 6-4 According to Investment Digest, the Arithmetic Mean of the Annual

question 103

Short Answer

TABLE 6-4
According to Investment Digest, the arithmetic mean of the annual return for common stocks from 1926-2010 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 Table 6-4, find the probability that the annual return of a random year will be less than 7.5%.

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Tense

Relating to a grammatical category that expresses a time relation.

Anxious

A feeling of worry, nervousness, or unease about something with an uncertain outcome.

Distributive Negotiation

A negotiation strategy where parties view resources as fixed and strive to maximize their share of the resources.

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The ability to produce original and valuable ideas or solutions.