Suppose That Only 2 Percent of All People Are Geniuses

question 23

Multiple Choice

Suppose that only 2 percent of all people are geniuses. If an IQ test indicates that Albert is a genius, but the test is only accurate 90 percent of the time, then the probability that Albert really is a genius is roughly:

• A)18 percent.
• B)2 percent.
• C)10 percent.
• D)16 percent

Recognize the benefits and risks associated with adding international stocks to a portfolio.

Comprehend the functions and utilities of American Depository Receipts (ADRs) and World Equity Benchmark Shares (WEBS) in global investing.

Understand how U.S. investors can participate in foreign markets through derivatives and direct investments.

Calculate the expected return on international investments considering foreign exchange rates and yields.

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Definitions:

Margin of Error

An expression of the amount of random sampling error in a survey's results.

Binomial Populations

Groups of individuals or events subjected to a binomial experiment, where outcomes are categorized into two distinct categories.

Independent Random Samples

Groups of randomly selected samples from a population where the selection of an item for one sample does not influence the selection for another sample.

Standard Error

The standard deviation of the sampling distribution of a statistic, most commonly the mean, which provides a measure of its precision.