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John Just Bought a Used IPad from a Friend Who

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John just bought a used iPad from a friend who had lost the charging cable. John notices that the cable is like the charging cable for his Android smartphone, though it is not quite the same.
What type of cable will John need to purchase to replace the iPad's charger cable?


Definitions:

Standard Deviation

A statistical measure that indicates the extent of deviation for a group as a whole, showing how much variation or dispersion exists from the average.

Cyclical Stock

A stock whose price is affected by macroeconomic or systematic changes in the overall economy.

Countercyclical Stock

Stocks that tend to move inversely to the economic cycle; they perform well when the economy is in a downturn.

Portfolio Expected Return

The portfolio expected return is the weighted average of the expected returns of the assets within a portfolio.

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