Answer:
This is a stratified random sample because a separate random sample is selected from each class
Explanation:
Stratified random sampling is an appropriate method when the population consists of mixed characteristics and you would like to ensure that every characteristic is proportionally represented in the sample. In this example, the population is the students from Central High School and the mixed characteristics are the different classes such as Freshman students, Sophomore students, Juniors and Seniors.
After the population is divided into subgroups based on characteristics, from the overall proportion of the population, you calculate how many people should be sampled in each subgroup. Random or systematic sampling can then be used to select a sample from each subgroup.
If you beat the market with inside information, you have violated the concept of strong form efficiency.
Strong form efficiency refers to a market in which stock prices fully and fairly reflect not only all public and all historical information but also all private information (inside information).
Strong Form Efficiency is the most rigorous version of EMH (Efficient Market Hypothesis) investment theory, stating that all market information, public or private, is factored into stock prices.
A stronger version of the Efficient Markets Hypothesis states that all published and unpublished information is fully reflected in the current stock price and that there is no information available to investors. . market advantage.
Learn more about strong form efficiency here: brainly.com/question/13405657
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Answer:
(a) Work/leisure choice
(b) Marketing strategy
Explanation:
Microeconomic issues relate to those that are within the scope and power of individuals, households and firms which means that problems here will relate to decisions that these participants make in relation to resource allocation.
Choices relating to leisure or work have to do with the individual and the resources they would need or derive from either work or leisure and so are a microeconomic problem.
The marketing strategy that a firm should pursue is related to an individual firm and so is a microeconomic problem as well.
