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

question 24

Short Answer

SCENARIO 6-4
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 6-4, find the probability that the annual return of a random year will be more than 7.5%.

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Definitions:

Low Ball Tactic

A persuasion and selling technique where an initially attractive offer is made to get a commitment, which is then made less attractive before the deal is closed.

Social Influence

The effect that the words, actions, or mere presence of other people have on our beliefs, feelings, attitudes, or behavior.

Heuristic-Systematic Model

A dual-process theory of persuasion that suggests there are two ways people process information: through heuristics (quick, automatic thinking) and systematically (deep, thoughtful analysis).

Systematic Processing

A mode of thinking in which individuals take a more analytical and comprehensive path to evaluating information, as opposed to relying on general impressions.