Selection bias occurs because the sample that is taken is not representative of the general population.
If a sample is taken from the undergraduate students you can only generalize to undergraduate students.
Say that you want to know which is the most popular baseball team in the country and you take a sample from New York, and that give a result that 60% of the sample supports the Yankees. If you say "60% of americans support the Yankees" you will be commiting an error because your sample is not representative, and Californians may not share that result (for example).
Great Britain and France...... both suffered major losses in WWII and were allies of the United States. Supporting these two countries supported a halt to the spread of communism.
Efficient utilization of resources: The most essential function of economic planning is to ensure the best use of given resources within the country. Maximum social benefits can only be ensured when the available resources are allocated and utilized in the most efficient manner.
Duration would not be an appropriate measure for corporate common stock.
Option: (C)
<u>Explanation:
</u>
By considering duration as a measure, only the anticipated price movement of fixed income security for a given change in given market interest rate levels could be determined.
On the other hand, duration would be an appropriate measure for bonds and preferred stocks as they are fixed income securities Whereas, common stock is not a fixed income security so the condition of duration would not be applicable.
