Question

what are indices ?


explain please....

Answer 1

Index is a number says how many times to use the number in a multiplication. It is written as a small number to the right and above the base number. In this example : 82=8×8=64. The plural form of index is indices. Other name for indices is exponent or power.
The index form is :
is at the top.
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Answer 2

A stock index or stock market index is a measurement of a section of the stock market. It is computed from the prices of selected stocks (typically a weighted average). It is a tool used by investors and financial managers to describe the market, and to compare the return on specific investments.

Two of the primary criteria of an index are that it is investable and transparent: the method of its construction should be clear. Many mutual funds and exchange-traded funds attempt to "track" an index (see index fund) with varying degrees of success. The difference between an index fund's performance and the index is called tracking error.

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