Two Stocks, a and B, Have a Historical Correlation Indistinguishable

question 121

Short Answer

Two stocks, A and B, have a historical correlation indistinguishable from zero. The probability that stock A increases next year is 0.2, and the probability that stock B increases next year is 0.4. Calculate the probability that A and B both increase next year.

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Definitions:

Biased Sample

A sample that does not accurately represent the population from which it was drawn, often leading to skewed results.

Population

A group of individuals of the same species living and interbreeding within a given area.

Independent Variable

The variable that is manipulated or changed in an experiment to test its effect on the dependent variable.

Statistically Significant

A term in statistical hypothesis testing used to denote that the results obtained are unlikely to have occurred by chance, at a specified level of significance.