Suppose There Are 50 Fish Species in One Lake and 30

question 32

Short Answer

Suppose there are 50 fish species in one lake and 30 in a neighboring lake. If the Sorenson's index of these lakes is 0.4, then _______ species would be shared by the two lakes.

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Definitions:

Spot Index

A real-time index that reflects the current prices of the securities included in the index.

Arbitrage Profit

The gain obtained from the simultaneous purchase and sale of the same or equivalent assets or commodities in different markets or in derivative forms.

Selling Short

The investment strategy of selling securities one does not currently own, with the expectation of buying them back later at a lower price.

Mark-To-Market

An accounting method where the value of assets and liabilities is adjusted to their current market values rather than being recorded at their original cost.