20 Questions
Which organization maintains the S&P 500 stock market index?
S&P Dow Jones Indices
How many common stocks are included in the S&P 500?
503
What percentage of the American equity market does the S&P 500 represent?
80%
How are the constituent weights in the S&P 500 index determined?
By company size
Why does the S&P 500 index contain 503 stocks instead of 500?
To accommodate mergers and acquisitions
Which individual is credited with describing the Lincoln index?
Frederick Charles Lincoln
What is another name for the Lincoln index?
Lincoln-Petersen method
In what fields is the Lincoln index commonly used?
Animal species population estimation
What does the Lincoln index help estimate?
Population size of an animal species
What is the purpose of the mark and recapture method?
Estimate population size
Which of the following is NOT a type of interest in ecology when using diversity indices?
Haplotypes
What can be the measure of abundance in ecology when using diversity indices?
All of the above
In what field can diversity indices be used to study demographic groups?
Demography
What are diversity indices used to represent in ecology?
Biodiversity in different aspects
What can be the entities of interest in information science when using diversity indices?
Characters
Which of the following is a quantitative measure that reflects how many different types there are in a dataset and can take into account the phylogenetic relations among the individuals distributed among those types?
Diversity index
In ecology, what are the types of interest when using diversity indices?
Species
In demography, what can be the entities of interest when using diversity indices?
People
In information science, what can be the entities of interest when using diversity indices?
Characters
What can be the measure of abundance in ecology when using diversity indices?
Number of individuals
Study Notes
S&P 500 Index
- Maintained by S&P Dow Jones Indices
- Comprises 503 common stocks, representing approximately 80% of the American equity market
- Constituent weights are determined by market capitalization
- Includes 503 stocks instead of 500 due to companies having multiple classes of shares
Lincoln Index
- Credited to Frederick Charles Lincoln
- Also known as the Margalef index
- Commonly used in ecology and demography
- Helps estimate species richness and diversity
- Used in mark and recapture method to estimate population size
Diversity Indices
- Used to represent species richness and diversity in ecology
- Can be used to study demographic groups in demography
- Entities of interest can be species, genres, or other taxonomic units in ecology
- Entities of interest can be demographic groups, such as age, gender, or occupation in demography
- Entities of interest can be documents, authors, or keywords in information science
- Phylogenetic diversity is a quantitative measure of diversity that takes into account phylogenetic relations among individuals
- Abundance can be measured by frequency, density, or biomass in ecology
Test your knowledge on the S&P 500 stock market index and its components with this quiz. Learn about the companies included, market capitalization, and more.
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